REPUBLIC OF INDONESIA MINISTRY OF PUBLIC WORKS DIRECTORATE GENERAL OF WATER RESOURCES
PROJECT FOR POST-EARTHQUAKE REHABILITATION OF
WATER RESOURCES MANAGEMENT FACILITIES IN
PADANG IN
REPUBLIC OF INDONESIA
FINAL REPORT
FEBRUARY 2011
JAPAN INTERNATIONAL COOPERATION AGENCY
IDEA CONSULTANTS, INC.
No.
A1P
JR
11-004
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report S-1 Summary
SUMMARY 1. Background of the Project
Padang City is the capital city of the West Sumatra Province, which is located in the center of the western part of the Sumatra Island. Padang City is situated on the alluvial lands formed by the Arau, Kuranji and Air Dingin rivers. Therefore, the city had been suffering from frequent flood damages for many years. In order to prevent continuing flood damages, Japanese ODA Loan Projects, “Padang Area Flood Control Projects (I) (II)” had been implemented during a period from 1990 to 2002. After completion of the flood control projects, there is no remarkable flood damage in Padang City. On September 30th, 2009, an earthquake of a moment magnitude 7.6 occurred off the coast of Padang City and caused the disasters in many parts of Padang City and West Sumatra. Many water resources management facilities including the flood control facilities were also affected by this earthquake. After the earthquake, the Japan International Cooperation Agency (“JICA”) had dispatched the Preparatory Survey Mission (The JICA Mission) for the Post-earthquake Rehabilitation of Water Resources Management Facilities in Padang in November 2009 in order to assist the rehabilitation planning of the damaged facilities. The earthquake caused devastation of river basins and increase of debris in the basins. Damages to the flood control facilities would extend flood damages in Padang City. Therefore, the earliest rehabilitation of these flood control facilities becomes one of the major keys to the recovery from the earthquake disaster.
2. Outline of Project
The Project was implemented in accordance with “Memorandum of Understanding between Japan International Cooperation Agency and The Ministry of Public Works of The Republic of Indonesia on Project for Post-Earthquake Rehabilitation of Water Resources Management Facilities In Padang” dated April 22, 2010. Outline of the Project are as follows: Overall Goal:
The secondary damages of the earthquake in Padang City are prevented by restoring the original function of damaged water resources management facilities.
Purposes: Among the facilities constructed by “Padang Area Flood Control Projects (I) (II)”, serious damages of the water resources management facilities are restored.
Output: Among the facilities constructed by “Padang Area Flood Control Projects (I) (II)”, damaged water resources management facilities which require urgent recovery are rehabilitated.
3. Organization Set Up
In the Project, JICA Indonesia Office is the employer for the rehabilitation works. Selection of contractor and construction supervision are implemented by JICA Indonesia Office and supported by the JICA Consultant Team and the following Indonesia agencies concerned: Executive Agency:
Directorate of River, Lake and Reservoir, Directorate General of Water Resources (DGWR), Ministry of Public Works (MPW) is responsible for the project administration.
Implementing Agency:
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report S-2 Summary
Sumatra V River Basin Office (Balai Wilayah Sungai Sumatera V “BWS Sumatera V”), representing DGWR, MPW is responsible for the project implementation.
Related Agencies: Regional Development Planning Agency (Badan Perencanaan Pembangunan Daerah “BAPPEDA”), West Sumatra, Water Resources Management Services (Dinas Pengelolaan Sumber Daya Air, “Dinas PSDA”), West Sumatra, Regional Disaster Management Agency (Badan Penaggulangan Bencana Daerah “BPBD”), West Sumatra, and Technical Support Team for Post-earthquake Rehabilitation and Reconstruction of West Sumatra Province (Tim Pendukung Teknis Rehabilitassi dan Rekonstruksi Pasca Gempa Propinsi Sumatera Barat “TPT”), representing National Disaster Management Agency (Badan Nasional Penanggulangan Bencana “BNPB”) cooperate with the executive agency, the implementing agency as well as the consultant team for smooth project implementation.
In order to promote effective and successful project implementation, the Project Steering Committee and the Project Working Group were set up.
4. Selection of Contractor
Based on the detailed design, the bidding documents were prepared and the contractor was selected through the LCB procedure. The selection process was as follows:
Selection Process of Contractor(s)
Date Events
March 29, 2010 Invitation for Bids (Media Indonesia)
March 30 –April 06,
2010
Distribution of Documents at JICA Indonesia Office and Project
Working Group Office in Padang.
April 07, 2010 Pre-bid Meeting at Project Working Group Office in Padang
April 07, 2010 Joint Site Visit in Padang
April 13, 2010 Last date for questions from Bidders
April 15, 2010 Issue of Addendum No.1 and Answer to Questionnaire from Bidders
April 26, 2010 Submission of Bid (10:00 -14:00), and immediately Opening of Bids
thereafter.
The bidders are P.T. Pembangunan Perumahan, Tbk., P.T. Waskita
Karya and P.T. Nindya Karya.
April 26 – May 5,
2010
Bid Evaluation
May 07, 2010 Issue of Letter of Acceptance to successful bidder (P.T. Waskita
Karya. Corrected bid price is Rp.9,754,804,598.)
Pre-Contract Meeting with P.T. Waskita Karya
May 18, 2010 Conclusion of Contract (Contract Signing)
May 19, 2010 Issue of Notice to Proceed to P.T. Waskita Karya.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report S-3 Summary
5. Construction Works The construction works were executed by the Contractor (P.T. Waskita Karya) under the established construction supervision system with a period of 270 days from May 19, 2010 to February 12, 2011. During the construction period of the works, minor modifications of the original designs and the original works were made depending on the situations of the sites. In addition, the construction period was extended for 30 days from 240 days of the original contract due to the extreme weather condition, etc. Those variations of the Works and extension of the construction period were summarized to the following amendments to the contract. - Amendment No. 1 (Contract No. 100517-0020-A01) dated on January 12, 2011
on extension of intended completion date. Original contract: 240 days (up to January 13, 2011) Amendment No.1: 270 days (up to February 12, 2011)
- Amendment No. 2 (Contract No. 100517-0020-A02) dated on February 04, 2011 on change of Bill of Quantities. The contract amount was reduced. Original Contract Amount: Rp. 9,754,804,598. Amendment No. 2: Rp. 9,228,567,657. (Reduction Rp. 526,236,941. 5.4 % of the original amount)
The construction works was officially accepted by the Employer (JICA Indonesia Office) on February 12, 2011 and the works were taken over by the Ministry of Public Works of the Republic of Indonesia. The Defects Notice Period of 180 days commenced on February 13, 2011 and will end on August 11, 2011.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report i Table of Contents
REPUBLIC OF INDONESIA PROJECT FOR POST-EARTHQUAKE REHABILITATION OF
WATER RESOURCES MANAGEMENT FACILITIES IN PADANG
FINAL REPORT Location Map of the Project Summary
TABLE OF CONTENTS Page
1. INTRODUCTION ····························································································· 1 1.1 Background of the Project ··············································································· 1 1.2 Outline of Project ···························································································· 2
1.2.1 Overall Goal ································································································ 2 1.2.2 Purposes ······································································································ 2 1.2.3 Output ·········································································································· 2 1.2.4 Activities ····································································································· 2
1.3 Project Area ····································································································· 3 2. SUMMARY OF PROJECT MANAGEMENT ··············································· 4
2.1 Project Activities ····························································································· 4 2.2 Implementing Arrangement ············································································ 6
2.2.1 Indonesian Agencies Concerned ································································· 6 2.2.2 Organization Set Up ···················································································· 6 2.2.3 Project Steering Committee ········································································ 7 2.2.4 Project Working Group ··············································································· 7 2.2.5 JICA Consultant Team ················································································ 7
2.3 Input ················································································································ 8 2.3.1 Japanese Side Input ····················································································· 8 2.3.2 Indonesia Side Input ···················································································· 8
3. REHABILITATION PLAN, DESIGN AND COST ESTIMATE ················· 9
3.1 Selection of Important Facilities for Rehabilitation Works ····························· 9 3.2 Rehabilitation Plan and Detailed Design ························································ 14 3.3 Construction Plan ···························································································· 18 3.4 Cost Estimate ·································································································· 22
4. SELECTION OF CONTRACTOR(S) ···························································· 26
4.1 Selection Process of Contractor ······································································ 26 4.2 Preparation of Bidding Documents ································································· 26 4.3 Bidding ············································································································ 27 4.4 Bid Evaluation and Contract ··········································································· 28
5. CONSTRUCTION WORKS AND CONSTRUCTION SUPERVISION ····· 38
5.1 Establishment of Construction Supervision System ······································· 38 5.2 Organization of Contractor ·············································································· 42 5.3 Construction Period and Construction Time Schedule···································· 44 5.4 Construction Progress ····················································································· 47
5.4.1 Progress of Works ······················································································· 47 5.4.2 Amendment No.1 ························································································ 47
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
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Final Report ii Table of Contents
5.4.3 Amendment No.2 ························································································ 48 5.4.4 Completion of the Works ············································································ 53
6. CONTRACT COST AND DISBURSEMENT ················································ 54
6.1 Contract Cost ··································································································· 54 6.2 Disbursement··································································································· 63
7. GUIDANCE OF OPERATION AND MAINTENANCE OF RIVER FACILITIES ························································································ 64
7.1 Present Condition of Rivers and River Structures··········································· 64 7.2 Recommendation on Operation and Maintenance ·········································· 67
ATTACHMENT
Attachment-1: As-built Drawings Attachment-2: Photographs of Rehabilitation Works Attachment-3: Memorandum of Understanding between Japan International Cooperation
Agency and The Ministry of Public Works of The Republic of Indonesia on Project for Post-Earthquake Rehabilitation of Water Resources Management Facilities in Padang, dated April 22, 2010.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
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Final Report iii Table of Contents
LIST OF TABLES Table 2.1 Project Activities ·························································································· 5 Table 3.1 List of Damaged Water Resources Facilities (As of November 2009) ········ 10 Table 3.2 Selection of Objective Facilities for Rehabilitation ····································· 12 Table 3.3 List of Rehabilitation Works ········································································ 14 Table 3.4 Estimated Work Quantities of Respective Sites ··········································· 15 Table 3.5 Project Implementation Schedule (Original)················································ 16 Table 3.6 Estimated Workable Days ············································································ 18 Table 3.7 Water Level for Design of Temporary Coffering ········································· 19 Table 3.8 Reference Construction Time Schedule (Equipment: 2 Sets) ······················ 21 Table 3.9 Cost Estimate: Priced Bill of Quantities ······················································ 23 Table 3.10 Cost Estimate: Priced Daywork ··································································· 25 Table 4.1 Selection Process of Contractor(s) ······························································· 26 Table 4.2 Read-out Bid Prices ····················································································· 27 Table 4.3 Checklist of Preliminary Examination ························································· 29 Table 4.4 Bid Price after Detailed Examination ·························································· 31 Table 4.5 Proposed Contract Award ············································································· 31 Table 4.6 Corrected Bid Price ······················································································ 32 Table 5.1 BMs in Padang City ····················································································· 41 Table 5.2 Construction Time Schedule and Progress ··················································· 45 Table 5.3 Rainfall Condition in 2010 ··········································································· 48 Table 5.4 Summary of Variation of the Works ····························································· 49 Table 6.1 Summary of Priced Bill of Quantities ·························································· 54 Table 6.2 Breakdown of Priced Bill of Quantities ······················································· 55 Table 6.3 Breakdown of Priced Daywork ···································································· 58 Table 6.4 Breakdown of Priced Bill of Quantities for Each Site ································· 59 Table 6.5 Disbursement of the Works ·········································································· 63 Table 7.1 Structure to be paid Attention during Inspection ········································· 67
LIST OF FIGURES Figure 1.1 Seismic Intensity of 2009/Sep/30 Earthquake ············································· 1 Figure 2.1 Project Activity Flow ··················································································· 4 Figure 2.2 Organization of Project Implementation in Indonesia ································· 6 Figure 2.3 Composition of JICA Consultant Team ······················································· 8 Figure 3.1 Location Map of Damaged Water Resources Management Facilities in Padang (As of November 2009) ··············································· 11 Figure 3.2 Location Map of Rehabilitation Works ························································ 13 Figure 4.1 Bid Evaluation Procedure ············································································ 28 Figure 5.1 Organization of Project Working Group (Construction Supervision) ·········· 38 Figure 5.2 Review or Approval of Drawings and Documents······································· 40 Figure 5.3 Organization of the Contractor in Field ······················································· 42 Figure 5.4 Location of Site Facilities ············································································ 43 Figure 5.5 Construction Schedule and Progress ···························································· 46 Figure 7.1 Present Riverbed Condition in Padang City ················································· 66 Figure 7.2 Facilities to be paid Attention during Inspection ········································· 69
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
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Progress Report 1 Chapter 1
1. INTRODUCTION
1.1 Background of the Project
Padang City is the capital city of the West Sumatra Province, which is located in the center of the western part of the Sumatra Island. Padang City is prospering as a center of administration and education of West Sumatra and also as a commercial center in respect of communication and transport at the western coast of the Sumatra Island.
Padang City is located in the alluvial lands formed by the Arau, Kuranji and Air Dingin rivers. Therefore, the city had been suffering from frequent flood damages for many years. In order to prevent continuing flood damages, Japanese ODA Loan Projects, “Padang Area Flood Control Projects (I) (II)” had been implemented during a period from 1990 to 2002. After completion of the flood control projects, there is no remarkable flood damage in Padang City.
On September 30th, 2009, an earthquake of a moment magnitude 7.6 occurred off the coast of Padang City and caused the disasters in many parts of Padang City and West Sumatra. According to the information from West Sumatra Province, there were death toll 1,195 people, missing 2 people, injured 1,798 people, refugees 6,554 people and total damage amount of about Rp.4.8 Trillions, as of October 31st, 2009.
Figure 1.1 Seismic Intensity of 2009/Sep/30 Earthquake (Modified Mericalli Intensity)
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Progress Report 2 Chapter 1
Many water resources management facilities including the flood control facilities were also affected by this earthquake. According to the survey by the provincial government of West Sumatra as of October 10th, the damages of the flood control facilities such as the slope protection works, drop-structures, etc. were confirmed along 12 rivers. In particular, seismic intensity of this earthquake was greater in Padang City and the flood control facilities constructed by Japanese ODA Loan Projects have been also suffered damages.
After the earthquake, the Japan International Cooperation Agency (“JICA”) had dispatched the Preparatory Survey Mission (The JICA Mission) for the Post-earthquake Rehabilitation of Water Resources Management Facilities in Padang in November 2009 in order to assist the rehabilitation planning of the damaged facilities. The earthquake caused devastation of river basins and increase of debris in the basins. Damages to the flood control facilities would extend flood damages in Padang City. Therefore, the earliest rehabilitation of these flood control facilities becomes one of the major keys to the recovery from the earthquake disaster. 1.2 Outline of the Project
The Project was implemented in accordance with “MEMORANDUM OF UNDERSTANDING BETWEEN JAPAN INTERNATIONAL COOPERATION AGENCY AND THE MINISTRY OF PUBLIC WORKS OF THE REPUBLIC OF INDONESIA ON PROJECT FOR POST-EARTHQUAKE REHABILITATION OF WATER RESOURCES MANAGEMENT FACILITIES IN PADANG” dated April 22, 2010. Outline of the Project are described hereunder. 1.2.1 Overall Goal
The secondary damages of the earthquake in Padang City are prevented by restoring the original function of damaged water resources management facilities. 1.2.2 Purposes
Among the facilities constructed by “Padang Area Flood Control Projects (I) (II)”, serious damages of the water resources management facilities are restored. 1.2.3 Output
Among the facilities constructed by “Padang Area Flood Control Projects (I) (II)”, damaged water resources management facilities which require urgent recovery are rehabilitated. 1.2.4 Activities
The activities of the Project are as follows: (1) To select and design the objective facilities for rehabilitation
- To conduct field investigation in the project site - To make rehabilitation design and cost estimation
(2) To select contractors - To prepare tender documents - To select contractors through the local competitive bidding
(3) To conduct construction works for rehabilitation In the Project, JICA Indonesia Office is the employer for rehabilitation works. Contractor selection and construction supervision are implemented by JICA Indonesia
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Progress Report 3 Chapter 1
Office and supported by the consultant team. The Government of Indonesia (GOI) undertakes to bear claims, if any arises, against the consultant team resulting from, occurring in the course of, or otherwise connected with the discharge of their official functions in the Republic of Indonesia except for those arising from the willful misconduct or gross negligence of the consultant team.
(4) To hand over the facilities after rehabilitation works After final inspection, the rehabilitated facilities are handed over to GOI. JICA as well as consultants and contractors employed by JICA do not be liable for any defects nor damages after handing over of the facilities.
The consultant team assisted the rehabilitation works through selection of rehabilitation sites, rehabilitation design, selection of contractor(s) and construction supervision. 1.3 Project Area
The Project Area is Padang City of West Sumatra Province. Objective facilities are the flood control facilities damaged by the earthquake, which are constructed by the Japanese ODA Loan and require urgent recovery.
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2. SUMMARY OF PROJECT MANAGEMENT
2.1 Project Activities
The Project was implemented during the period from February 2010 to February 2011. Project activity flow and progress of the activities are shown in Figure 2.1 and Table 2.1, respectively.
Figure 2.1 Project Activity Flow
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Final Report 5 Chapter 2
Table 2.1 Progress of Activities
Japanese Fiscal Year 2009 2010Year 2010 2011
Work Item Month J F M A M J J A S O N D J F MPreparatory Work in Japan
(1)
(2)
Work in Indonesia(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
Completion Work in Japan(11)
Reporting(1) Inception Report(2) Progress Report(3) Final Report
Construction Works(1)
(2)
(3)
Legend:Work in Indonesia Report (English)Work in Japan Report (Japanese)
Establishment of ConstructionSupervision System
Review of Previous Reports, Data andInformationPreparation of Inception Report
Submittal, Explanation and Discussionof Inception ReportRehabilitation Plan, Detailed Designand Cost EstimateSelection of Contractor(s)
Construction Period
Flood Season
Preparation, Submittal, Explanation andDiscussion of Progress Report
Construction Supervision
Guidance of Operation andMaintenance of FacilitiesPreparation and Explanation of FinalReport (English Version)
Preparation and Explanation of FinalReport (Japanese Version)
Sellection of Contractor(s)09-13/Sep(Eid al Fitr)
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2.2 Implementing Arrangement
2.2.1 Indonesian Agencies Concerned
(1) Executive Agency: Directorate of River, Lake and Reservoir (current Directorate of River and Coast),
Directorate General of Water Resources (DGWR), Ministry of Public Works (MPW) is responsible for the project administration.
(2) Implementing Agency: Sumatra V River Basin Office (Balai Wilayah Sungai Sumatera V “BWS Sumatera V”),
representing DGWR, MPW is responsible for the project implementation. (3) Related Agencies: Regional Development Planning Agency (Badan Perencanaan Pembangunan Daerah
“BAPPEDA”), West Sumatra, Water Resources Management Services (Dinas Pengelolaan Sumber Daya Air, “Dinas
PSDA”), West Sumatra, Regional Disaster Management Agency (Badan Penaggulangan Bencana Daerah
“BPBD”), West Sumatra and Technical Support Team for Post-earthquake Rehabilitation and Reconstruction of West
Sumatra Province (Tim Pendukung Teknis Rehabilitassi dan Rekonstruksi Pasca Gempa Propinsi Sumatera Barat “TPT”), representing National Disaster Management Agency (Badan Nasional Penanggulangan Bencana “BNPB”)
cooperate with the executive agency, the implementing agency as well as the consultant team for smooth project implementation.
2.2.2 Organization Set Up
In order to promote effective and successful project implementation, the Project Steering Committee and the Project Working Group were established. Organization setup of the Project is presented below:
Figure 2.2 Organization of Project Implementation in Indonesia The functions and compositions of the Project Steering Committee and the Project Working
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Group are described below: 2.2.3 Project Steering Committee
(1) Functions The Project Steering Committee was set up to promote effective and smooth implementation of the Project. The Steering Committee will meet on occasion, in order to fulfill following function:
- To review the progress of activities implemented under the activity plan, - To review and exchange opinions on major issues that may arise during the
implementation of the Project, - To discuss any other issue(s) pertinent to the smooth implementation of the Project, and - To give the guidance and suggestion to the Working Group.
(2) Compositions The Steering Committee consists of;
- Chairperson: Director of River, Lake and Reservoir, DGWR, MPW - Members Head of BWS Sumatra V, DGWR, MPW Head of BAPPEDA, West Sumatra Province Head of Dinas PSDA, West Sumatra Province Head of TPT, BNPB Head of BPBD, West Sumatra Province Senior Representative of JICA Indonesia Office - Secretariat: JICA Indonesia Office and JICA Consultant Team
2.2.4 Project Working Group
(1) Functions The Project Working Group served as the implementation organization of the Project including the JICA Consultant Team. Function of the Working Group is as follows:
- To assist all activities in the field, including rehabilitation design and final inspection, - To report progress and plan of the activities to the Steering Committee regularly, and - To cooperate on settlement of issues that may arise during the implementation of the
Project. (2) Compositions The Steering Committee consists of:
- Chairperson: Head of BWS Sumatra V, DGWR, MPW - Members: The JICA Consultant Team and the officials dispatched from the following
agencies concerned: Directorate of River, Lake and Reservoir, DGWR, MPW BWS Sumatera V, DGWR, MPW Dinas PSDA, West Sumatra Province
2.2.5 JICA Consultant Team
The JICA Consultant Team composed of the Japanese experts and the experts from the local consultant firm under the subletting system. Composition of the JICA Consultant Team is presented at Figure 2.3.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 8 Chapter 2
Figure 2.3 Composition of JICA Consultant Team 2.3 Input
2.3.1 Japanese Side Input
JICA procured the construction company for the rehabilitation works. In addition, JICA employed the JICA Consultant Team including Japanese experts and the local experts for assistance of implementation of the rehabilitation works. 2.3.2 Indonesia Side Input
(1) Assignment of counterpart personnel The executing agency and related agencies assigned their officials as the counterpart
personnel of the Project. (2) Provision of appropriate office space and office equipment for the Team The office space for the Project Working Group was prepared as follows:
- In Dinas PSDA, West Sumatera Province during the preparation and bidding stage (from February to May, 2010)
- In BWS Sumatra V during the construction stage (from May, 2010 to February 2011) (3) Provision of data, information and documents related to Padang Area Flood Control
Projects (I) and (II) (4) Provision of data and information regarding the relevant contractors
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 9 Chapter 3
3. REHABILITATION PLAN, DETAILED DESIGN AND COST ESTIMATE
3.1 Selection of Important Facilities for Rehabilitation Works
Water resources facilities damaged by the 30/Sep/2009 earthquake off the Padang were surveyed by the JICA Mission during November 2009. The summary of the survey by the JICA Mission are presented in Table 3.1 and Figure 3.1. According to the results of the JICA Mission, 53 water resources management facilities were damaged by the earthquake. Out of those, some facilities suffered minor damages and would be repaired with the maintenance works or temporary works. Remaining 32 facilities required rehabilitation works. In the Project, up to one hundred (100) million Japanese Yen was prepared as the construction budget for the rehabilitation works. Therefore, selection of important facilities for the rehabilitation was required. Based on the survey results as of November 2009, 16 facilities with high priority on both flood control and civil life aspects and a bridge with high priority on civil life aspect were considered and recommended as the candidate facilities of the rehabilitation works. After the inspection of the JICA Mission during November 2010, there were four (4) big after-quakes and several floods, which would affect the progressing of the damages of the facilities. In order to confirm the present condition of the damaged facilities and to determine the objective facilities of the rehabilitation works, the joint inspection for the candidate facilities of the rehabilitation works were carried out by the JICA Consultant Team and the officials from the authorities concerned. After this joint inspection, the objective facilities for the rehabilitation works were discussed among the authorities concerned including the JICA Consultant Team, and determined as shown in Table 3.2 and Figure 3.2. In addition to the rehabilitation works of objective facilities, the daywork in the construction contract was employed to repair minor damages of the facilities and to prepare the contingency for the rehabilitation works.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 10 Chapter 3
Prio
rity
Reh
abilit
atio
nC
ost
Cos
t (R
p.m
il.)C
ost (
Rp.m
il.)Co
st (R
p.m
il.)
Cos
t (R
p.m
il.)
Prop
osed
No.
Sta.
No.
Dam
aged
Stru
ctur
eFl
oodi
ngCi
vil lif
eC
ount
erm
easu
res
exte
nt (m
)(R
p. m
illion
)F>
=hig
hC
>=hi
ghF
or
C >
=hig
hF
and
C: h
igh
Reh
abilit
atin
g
1JI
1-1
Rev
etm
ent
rath
er h
igh
lowR
econ
struc
tion
of re
vetm
ent b
y ga
bion
mat
tress
inst
ead
of w
etm
ason
ry10
100
100
-10
0-
2JI
1-2
Low
wat
er re
vetm
ent
lowhi
ghR
econ
struc
tion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
in fu
ture
5071
9-
719
719
-3
JI 1
-3Lo
w w
ater
reve
tmen
tlow
high
Rec
onstr
uctio
n of
reve
tmen
t with
foot
pro
tect
ion
wor
ks in
futu
re90
1,29
5-
1,295
1,29
5-
4JI
2Lo
w w
ater
reve
tmen
tlow
high
Rec
onstr
uctio
n of
reve
tmen
t with
foot
pro
tect
ion
wor
ks in
futu
re15
02,
158
-2,1
582,
158
-5
BK
1-1
Slui
cew
ay, r
evet
men
thi
ghhi
ghR
econ
struc
tion
of re
vetm
ent
401,
204
1,20
41,2
041,
204
1,20
4●
6B
K 1
-2D
ike
high
high
Rec
onstr
uctio
n of
Dike
bes
ide
the
sluic
eway
5044
4444
4444
●
7B
K 1
-3Sl
uice
way
, rev
etm
ent
high
high
Rec
onstr
uctio
n of
reve
tmen
t26
782
782
782
782
782
●
8B
K 1
-4D
ike
high
high
Rec
onstr
uctio
n of
Dike
bes
ide
the
culve
rt (W
orks
will
be in
clud
ed in
BK
1-3.
)-
- -
- -
- ●
9B
K 1
-5R
evet
men
tlow
high
Rec
onstr
uctio
n of
reve
tmen
t16
605
-60
560
5-
10B
K 2
Foot
path
brid
ge (a
t Par
ak K
opi)
lowhi
ghPu
tting
bac
k sh
ifted
bea
m w
ith st
oppe
r-
500
-50
050
0-
●
11U
G 1
-1R
evet
men
tlow
lowR
econ
struc
tion
of re
vetm
ent i
n fu
ture
- -
--
--
12U
G 1
-2Pa
rape
t wall
& in
spec
tion
road
lowlow
Rec
onstr
uctio
n of
par
apet
wal
l and
insp
ectio
n ro
ad in
futu
re-
- -
--
-13
UG
1-3
Para
pet w
all &
insp
ectio
n ro
adlow
lowR
econ
struc
tion
of p
arap
et w
all a
nd in
spec
tion
road
in fu
ture
- -
--
--
14K
R 1
-1D
ike
& re
vetm
ent
lowlow
Bac
kfilli
ng a
nd m
orta
r inje
ctio
n (re
pair
wor
ks)
- -
--
--
15K
R 1
-2D
ike
lowlow
Bac
kfilli
ng (r
epai
r wor
ks)
- -
--
--
16K
R 1
-3R
evet
men
tlow
lowM
orta
r inj
ectio
n (r
epai
r wor
ks)
- -
--
--
17K
R 2
Dik
e &
reve
tmen
tlow
lowM
orta
r inj
ectio
n (r
epai
r wor
ks)
- -
--
--
18K
R 3
-1C
ulve
rtlow
lowM
orta
r inj
ectio
n an
d re
cons
truct
ion
of c
hann
el sl
ab (r
epai
r wor
ks)
- -
--
--
19K
R 3
-2D
ike
high
high
Reh
abilit
atio
n of
cra
cked
par
t53
1010
1010
10●
20K
R 3
-3Sl
uice
way
high
high
Rec
onstr
uctio
n of
slui
cew
ay-
792
792
792
792
792
●
21K
R 4
Dik
elow
rath
er h
igh
Rec
onstr
uctio
n of
Dike
126
128
-12
812
8-
22K
R 5
-1Lo
w w
ater
reve
tmen
tlow
lowR
econ
struc
tion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
in fu
ture
3039
3-
--
-23
KR
5-2
Cul
vert
lowlow
Rec
onstr
uctio
n du
ring
new
brid
ge w
orks
- -
--
--
24K
R 5
-3D
ike
& R
evet
men
thi
ghhi
ghR
econ
struc
tion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
incl
udin
gre
pair
of d
ike80
1,28
61,
286
1,286
1,28
61,
286
●
25K
R 6
-1R
evet
men
thi
ghhi
ghR
econ
struc
tion
of u
pper
hal
f of r
evet
men
t60
244
244
244
244
244
●
26K
R 6
-2D
ike
& R
evet
men
thi
ghhi
ghR
econ
struc
tion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
160
2,57
22,
572
2,572
2,57
22,
572
●
27K
R 6
-3C
ulve
rthi
ghhi
ghM
orta
r inj
ectio
n of
gap
(rep
air w
orks
), re
cons
truct
ion
of re
vetm
ent
with
foot
pro
tect
ion
wor
ks12
193
193
193
193
193
●
28K
R 6
-4C
ulve
rthi
ghhi
ghM
orta
r inj
ectio
n (o
rdin
ary
repa
ir w
orks
of m
aint
enan
ce)
- -
- -
- -
29K
R 6
-5D
ike
high
high
Reh
abilit
atio
n of
cra
cked
par
t (re
pair
wor
ks)
123
33
33
●
30K
R 7
-1Lo
w w
ater
reve
tmen
thi
ghhi
ghM
orta
r inj
ectio
n (o
rdin
ary
repa
ir w
orks
of m
aint
enan
ce)
- -
- -
- -
31K
R 7
-2Sl
uice
way
lowhi
ghM
orta
r inj
ectio
n (O
rdin
ary
repa
ir w
orks
of m
aint
enan
ce)
- -
--
- -
32B
P 1-
1In
spec
tion
road
rath
er lo
wlow
No
coun
term
easu
re fo
r the
tim
e be
ing
- -
--
--
33B
P 1-
2R
evet
men
t & in
spec
tion
road
rath
er lo
wlow
Rec
onstr
uctio
n of
reve
tmen
t and
insp
ectio
n ro
ad in
futu
re-
- -
--
-34
BP
1-3
Brid
ge (a
butm
ents
& re
vetm
ent)
rath
er lo
wlow
Rec
onstr
uctio
n of
abu
tmen
t and
reve
tmen
t in
futu
re-
- -
--
-35
BL
1-1
Dik
ehi
ghhi
ghR
econ
struc
tion
of D
ike17
017
317
317
317
317
3●
36B
L 1-
2D
ike
high
high
Rec
onstr
uctio
n of
Dike
190
193
193
193
193
193
●
37B
L 2
Dik
ehi
ghhi
ghR
econ
struc
tion
of D
ike30
2323
2323
23●
38B
L 3-
1D
ike
high
high
Reh
abilit
atio
n of
cra
ck20
051
5151
5151
●
39B
L 3-
2R
evet
men
thi
ghhi
ghR
econ
struc
tion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
3060
060
060
060
060
0●
40B
L 4-
1C
ulve
rt (w
ing
& re
vetm
ent)
high
lowR
econ
struc
tion
of re
vetm
ent a
nd w
ing
by u
se o
f gab
ion
mat
tress
3034
034
0-
340
-41
BL
4-2
Rev
etm
ent
high
rath
er lo
wM
orta
r inj
ectio
n (O
rdin
ary
repa
ir w
orks
of m
aint
enan
ce)
- -
- -
- -
42B
L 4-
3C
ulve
rtlow
lowM
orta
r inj
ectio
n (O
rdin
ary
repa
ir w
orks
of m
aint
enan
ce)
- -
--
--
43B
L 5-
1R
evet
men
tlow
high
Rec
onstr
uctio
n of
reve
tmen
t with
foot
pro
tect
ion
wor
ks13
01,
890
-1,8
901,
890
-44
BL
5-2
Low
wat
er re
vetm
ent
lowhi
ghR
econ
struc
tion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
3030
6-
306
306
-
45B
L 5-
3Lo
w w
ater
reve
tmen
tlow
high
Mor
tar i
njec
tion
(ord
inar
y w
orks
of m
ainte
nanc
e) a
nd re
cons
truct
ion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
1010
2-
102
102
-
46B
L 6
Brid
ge (r
evet
men
t and
app
roac
h ro
ad)
high
lowM
orta
r inj
ectio
n fo
r cra
ck (o
rdin
ary
wor
ks o
f main
tena
nce)
and
reco
nstru
ctio
n of
reve
tmen
t10
102
102
-10
2-
47A
D 1
Slui
cew
ayhi
ghhi
ghM
orta
r inj
ectio
n (r
epai
r wor
ks)
- -
- -
- -
48A
D 2
Low
wat
er re
vetm
ent
lowlow
Rec
onstr
uctio
n of
upp
er h
alf o
f rev
etm
ent
3070
--
--
49A
D 3
-1Lo
w w
ater
reve
tmen
tlow
high
Mor
tar i
njec
tion
(rep
air w
orks
)-
- -
- -
-50
AD
3-2
Rev
etm
ent
high
lowR
econ
struc
tion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
in fu
ture
146
2,69
72,
697
-2,
697
-51
AD
3-3
Rev
etm
ent
high
lowR
econ
struc
tion
of re
vetm
ent w
ith fo
ot p
rote
ctio
n w
orks
in fu
ture
1833
233
2-
332
-52
AD
4D
rop
struc
ture
(Pul
ai)low
lowN
o co
unte
rmea
sure
for t
he ti
me
bein
g-
- -
--
-53
AD
5W
eir (
Kot
o Tu
o)low
lowN
o co
unte
rmea
sure
for t
he ti
me
bein
g-
- -
--
-TO
TAL
(Rp.
milli
on)
19,9
0711
,641
11,7
0115
,172
8,17
0●
: Obj
ecte
ve F
acilit
ies fo
r Reh
abilit
atio
n W
orks
pro
pose
d by
Pla
nnin
g Su
rvey
Miss
ion
(16
faci
litiie
s w
ith h
igh p
riorit
y on
bot
h flo
od c
ontro
l and
civ
il life
and
a b
ridge
with
hig
h pr
iorit
y on
civ
il life
.)
Tabl
e 3.
1
Lis
t of D
amag
ed W
ater
Res
ourc
es F
acili
ties (
As o
f Nov
embe
r 20
09)
Project for Post-earthquaWater Resources Ma
11
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 3
Figu
re 3
.1
Loc
atio
n M
ap o
f Dam
aged
Wat
er R
esou
rces
Man
agem
ent F
acili
ties i
n Pa
dang
(As o
f Nov
embe
r 20
09)
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 12 Chapter 3
Tabl
e 3.
2
Sele
ctio
n of
Obj
ectiv
e Fa
cilit
ies f
or R
ehab
ilita
tion
No.
Sta.
No.
Dur
ing
Plan
ning
Sur
vey
(Nov
/200
9)A
s of
Feb
/201
0W
ork-
Site
Dam
aged
Stru
ctur
ePr
iorit
yC
ount
erm
easu
res
Reh
abilit
atio
nC
ost
Prio
rity
No.
Floo
ding
Civ
il lif
eex
tent
(m)
(Rp.
milli
on)
Floo
ding
Civi
l life
1B
K 1
-1Sl
uice
way
, rev
etm
ent
rath
er h
eavy
high
high
Rec
onst
ruct
ion
of re
vetm
ent
401,
204
rath
er h
eavy
Sam
e co
ndist
ion
as o
fN
ov/2
009
high
high
40.0
B
K-R
1
2B
K 1
-2D
ike
heav
yhi
ghhi
ghR
econ
stru
ctio
n of
Dik
e be
side
the
sluic
eway
5044
rath
er h
eavy
Sam
e co
ndist
ion
as o
fN
ov/2
009
high
high
50.0
B
K-R
1
3B
K 1
-3Sl
uice
way
, rev
etm
ent
heav
yhi
ghhi
ghR
econ
stru
ctio
n of
reve
tmen
t26
782
heav
yD
amag
e is
prog
ress
ing.
high
high
55.0
4B
K 1
-4D
ike
heav
yhi
ghhi
ghR
econ
stru
ctio
n of
Dik
e be
side
the
culv
ert (
Wor
ks w
ill be
incl
uded
inB
K1-
3.)
- -
heav
ySa
me
cond
istio
n as
of
Nov
/200
9hi
ghhi
gh-
5B
K 2
Foot
path
brid
ge (a
t Par
akK
opi)
rath
er h
eavy
low
high
Putti
ng b
ack
shift
ed b
eam
with
sto
pper
- 50
0ra
ther
hea
vySa
me
cond
istio
n as
of
Nov
/200
9lo
whi
gh-
B
K-R
3
6K
R 3
-2D
ike
heav
yhi
ghhi
ghR
ehab
ilitat
ion
of c
rack
ed p
art
5310
Rep
aire
dR
epai
red.
--
-
7K
R 3
-3Sl
uice
way
heav
yhi
ghhi
ghR
econ
stru
ctio
n of
slu
icew
ay-
792
rath
er h
eavy
Dam
age
is pr
ogre
ssin
g.hi
ghhi
gh31
.6(r
evet
men
t)
KR
-R1
8K
R 5
-3D
ike
& R
evet
men
the
avy
high
high
Rec
onst
ruct
ion
of re
vetm
ent w
ith fo
otpr
otec
tion
wor
ks in
clud
ing
repa
ir of
801,
286
rath
er h
eavy
Dam
age
is pr
ogre
ssin
g.hi
ghhi
gh90
.0(r
evet
men
t)
KR
-R2
9K
R 6
-1R
evet
men
the
avy
high
high
Rec
onst
ruct
ion
of u
pper
hal
f of
reve
tmen
t60
244
heav
yD
amag
e is
prog
ress
ing.
high
high
56.8
10K
R 6
-2D
ike
& R
evet
men
tra
ther
hea
vyhi
ghhi
ghR
econ
stru
ctio
n of
reve
tmen
t with
foot
prot
ectio
n w
orks
160
2,57
2ra
ther
hea
vyD
amag
e is
prog
ress
ing.
high
high
86.8
(rev
etm
ent)
K
R-R
4
11K
R 6
-3C
ulve
rtra
ther
hea
vyhi
ghhi
ghM
orta
r inj
ectio
n of
gap
(rep
air w
orks
),re
cons
truct
ion
of re
vetm
ent w
ith fo
otpr
otec
tion
wor
ks
1219
3ra
ther
hea
vyD
amag
e is
prog
ress
ing.
high
high
15.3
(rev
etm
ent)
K
R-R
5
12K
R 6
-5D
ike
Hea
vey
high
high
Reh
abilit
atio
n of
cra
cked
par
t (re
pair
wor
ks)
123
Rep
aire
dD
amag
e re
paire
d.-
--
13B
L 1-
1D
ike
heav
yhi
ghhi
ghR
econ
stru
ctio
n of
Dik
e17
017
3-
At p
rese
nt, r
istric
ted
area
by A
rmy.
--
-
14B
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econ
stru
ctio
n of
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e19
019
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rese
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istric
ted
area
by A
rmy.
--
-
15B
L 2
Dik
ehe
avy
high
high
Rec
onst
ruct
ion
of D
ike
3023
repa
ired
Alre
ady
repa
ired.
--
-
16B
L 3-
1D
ike
heav
yhi
ghhi
ghR
ehab
ilitat
ion
of c
rack
200
51re
paire
dA
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paire
d.-
--
17B
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2R
evet
men
tra
ther
hea
vyhi
ghhi
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stru
ctio
n of
reve
tmen
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foot
prot
ectio
n w
orks
3060
0ra
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e is
prog
ress
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high
high
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8 (r
evet
men
t)
BL-
R1
Dam
age
degr
eeD
amag
ede
gree
Con
ditio
nR
ehab
iltia
tion
exte
nt (m
)W
orks
by
JIC
A
Project for Post-earthquaWater Resources Ma
13
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 3
Figu
re 3
.2
Loc
atio
n M
ap o
f Sel
ecte
d R
ehab
ilita
tion
Wor
ks
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 14 Chapter 3
3.2 Rehabilitation Plan and Detailed Design
The objective rehabilitation works are summarized as follows:
Table 3.3 List of Rehabilitation Works No. River Site No. Scope of Work 1 Flood Relief
Channel BK-R1 Works around Purus Sluice (right bank, L=39.9m):
dike, slope protection, outlet of sluice 2 Flood Relief
Channel BK-R3 Rehabilitation works of Parak Kopi footpath bridge:
re-erection of girder, anti-seismic measure at abutments and pier.
3 Kuranji River KR-R1 Works around K.8 Sluiceway (left bank, L=31.7m): Sluiceway, dike, slope protection
4 Kuranji River KR-R2 Works at downstream site of Nanggalo Bridge (right bank, L=90.0m): dike, slope protection
5 Kuranji River KR-R4 Works at upstream site 2 of Nanggalo Bridge (left bank, L=86.8m): dike, slope protection
6 Kuranji River KR-R5 Works at upstream site 3 of Nanggalo Bridge (left bank, L=15.3m): dike, slope protection
7 Balimbing River BL-R1 Works at downstream site of Tunggul Hitam Bridge (Right bank, L=141.8m): dike/slope protection works (BL 3-2)
Note, L indicates reconstruction length of slope protection. Rehabilitation plan and design of the above works were made based on the following basic principles:
a. The rehabilitation works are principally restoration to the original facilities. b. Design is made based on the as-built drawing. Extent of the rehabilitation works was
surveyed at the site. Quantities of respective works are estimated based on the as-built design. Prior to the construction works, the contractor will conduct the survey work and prepare the working drawings. Actual quantities of the works will be estimated based on the working drawings.
c. Regarding the slope protection work: In order to cope with the riverbed degradation, the foot protection works with the riprap
were applied to the rehabilitation of slope protection works on the assumption of the riverbed degradation with 1.0 m, except the works at BK-R1. There is no riverbed degradation around BK-R1.
Because there is no reinforcement bars in the existing partition work of the wet-masonry type slope protection, it is difficult to prevent the damage of the slope protection from spreading. Therefore, the reinforcement bar arrangement to the partition work is applied to the rehabilitation works.
d. Regarding the Parak Kopi Footpath Bridge: The bridge girder was shifted at the left side abutment by the earthquake. The bridge has
no anti-seismic device. Therefore, there is a fear to have recurrence of the girder shift by earthquake. In order to prevent recurrence of girder shift, anti-seismic devices are installed. The anti seismic devices include steel brackets at both sides of the piers and the RC bracket of the left abutment for extension of the bridge seat and the RC walls at the right and left abutment for restriction of displacement of the girders. The anti-seismic devices are also used as the support of the equipment for the re-erection of the girder.
As the results of the rehabilitation plan and the detailed design, the design drawings of the
rehabilitation works and thedrawings were compiled as thare shown in Table 3.4.
Tabl
e 3.
4 (1
/3)
E
stim
ated
Wor
k Q
uant
ities
of R
espe
ctiv
e Si
tes
Project for Post-earthquaWater Resources Ma
15
e design note for the bridge works were prepahe bidding drawings. Estimated quantities of the
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 3
ared. The design e respective works
Tabl
e 3.
4 (2
/3)
E
stim
ated
Wor
k Q
uant
ities
of R
espe
ctiv
e Si
tes
Project for Post-earthquaWater Resources Ma
16
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 3
Tabl
e 3.
4 (3
/3)
E
stim
ated
Wor
k Q
uant
ities
of R
espe
ctiv
e Si
tes
Project for Post-earthquaWater Resources Ma
17
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 3
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 18 Chapter 3
3.3 Construction Plan
The construction plan of the Project was prepared based on the following basic conditions: a. Implementation schedule: The construction works of the Project are planned to be implemented at one (1) contract
procured through the local competitive bidding (LCB), and with the construction period of 240 days from the middle of May 2010 to the middle of January 2011 as shown in Table 3.5, in consideration of urgency of the works and work volume.
Table 3.5 Project Implementation Schedule (Original)
b. Climate and workable days: The climate of the Project area is characterized by no definite distinction between the dry
and wet seasons. According to the rainfall observation record at Tabing Station during the period from 2005 to 2009, the average annual rainfall in Padang area is about 4,260 mm. The rainfall lows occur in May and August and rainfall highs occur during October through December.
Monthly workable days are estimated on the assumption that construction works will be suspended in the National holiday and rainy day. Based on the rainfall records during a period from 2005 to 2009 at Tabing Station, the workable days are estimated as follows:
Table 3.6 Estimation of Workable Days
Note, 1. National Holidays based on 2010. 2. Holidays in September are Eid al Fitr holidays + 4 additional days. 3. Earth and structure works: suspended at holidays and rainfall days with over 20 mm.
Daily working shift and hours are assumed to be one (1) sift of eight (8) hours for
Year 2010 2011
Item Month F M A M J J A S O N D J F M
(1) Preparation of Documents
(2) Selection of Contractor(s)
(3) Construction Period
(4) Flood Season
09-13/Sep(Eid al Fitr)
(240 days)
Calender National Workable
day Holiday *1 Rainfall days > 10 mm > 20 mm day *3
January 31 1 14 8 5 25 February 28 2 12 8 4 22 March 31 1 15 9 6 24 April 30 1 18 6 4 25 May 31 2 13 5 3 26 June 30 0 13 7 5 25 July 31 1 13 7 5 25 August 31 1 15 7 4 26 September *2 30 8 14 7 5 17 October 31 0 18 9 7 24 November 30 1 20 9 6 23 December 31 3 21 11 7 21
MonthRainfall days
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 19 Chapter 3
construction works in principle. While, daily operation hours of construction equipment are assumed to be 6 hours in net.
c. Construction equipment to be employed Major construction works required for the project are earth works, concrete works.
Mechanized construction system will be adopted for the execution of the works in order to shorten the construction period. Construction equipment, which will be utilized for those construction works, is available mostly at Padang, Pekanbaru, Medan or Jakarta City with rental basis or other methods. The required equipment to be employed is as follows:
- Backhoe, 0.6 cu.m - Dump Truck 8 ton - Crawler Crane 35 ton - Vibro Driver 40 kW - Diesel Generator 45 KVA - Diesel Generator 125 KVA - Submersible pump 4” - Hydraulic Breaker 1,300 kg - Concrete mixer 0.3 cu.m
d. Construction materials and transportations Major construction materials to be required will be cement, aggregates, stone, and kinds of
steel materials. Those materials are available in Padang City mostly. Ready mixed concrete is also available in the several factories in Padang City. However, it is difficult to procure the steel sheet piles for temporary coffering at Padang, and those materials need to transport from Pekanbaru, Medan or Jakarta.
e. Labor Source Skilled and unskilled labors to be required will be recruited in Padang City mostly. f. Temporary Coffering In general, the rehabilitation works except the bridge works are executed with the river
diversions. The following water levels are principally applied to the designing of temporary coffering for river diversions in consideration of the flood discharge during the construction and levee cut off:
During non flood season
- With levee cutoff (KR-R1): maximum water level during non flood season in last five (5) years
- Without cutoff of dike: maximum water level during non flood season in last five (5) years
During flood season - With levee cutoff (KR-R1): design high water level - Without cutoff of dike: maximum water level in last five (5) years
Based on the above principles and the interview results at the sites, the water levels of the
respective work sites for the temporary coffering are determined as shown in Table 3.7.
Table 3.7 Water Level for Design of Temporary Coffering Site Water Level (DHWL Base: m)
Non-Flood Season Flood Season BK-R1 -0.30 0.00 KR-R1 -0.40 0.00 KR-R2 -1.50 -0.40 KR-R4 -2.10 -0.60 KR-R5 -2.10 -0.60 BL-R1 -1.30 -0.40
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 20 Chapter 3
In consideration of the water depth and river-bed material, the coffering works by use of the steel sheet piles and sand bags are proposed to the rehabilitation works. During the non flood season coffering works by steel sheet piles with a length of 12 m can be applied at BK-R1 and KR-R1, and 8 m at KR-R2, KR-R4, KR-R5 and BL-R1. The coffering works during flood season becomes a larger scale than during non- flood season.
Based on the above conditions, the construction plan of the works was made and compiled as the design note for the construction supervision. The reference construction time schedule of the works is shown in Table 3.8
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 21 Chapter 3
Tabl
e 3.
8
Ref
eren
ce C
onst
ruct
ion
Tim
e Sc
hedu
le (E
quip
men
t: 2
Set
s)
Pre
para
tion
Wor
ks a
roun
d P
urus
slu
ice
Driv
ing
Pile
Ext
ract
ing
Pile
Dem
olis
hing
of e
xist
ing
Slo
pe P
rote
ctio
nC
oncr
ete
and
Stru
ctur
e w
ork
Wor
ks o
f Slu
ice
K.8
Driv
ing
Pile
Ext
ract
ing
Pile
Dem
olis
hing
of e
xist
ing
Slo
pe P
rote
ctio
nC
oncr
ete
and
Stru
ctur
e w
ork
Wor
ks o
f Dow
nstre
am S
ite o
f Nan
ggal
o B
ridge
Driv
ing
Pile
Ext
ract
ing
Pile
Dem
olis
hing
of e
xist
ing
Slo
pe P
rote
ctio
nC
oncr
ete
and
Stru
ctur
e w
ork
Wet
Mas
onry
Wor
ks a
t Ups
tream
2 S
ite o
f Nan
ggal
o B
ridge
Driv
ing
Pile
Ext
ract
ing
Pile
Dem
olis
hing
of e
xist
ing
Slo
pe P
rote
ctio
nC
oncr
ete
and
Stru
ctur
e w
ork
Wet
Mas
onry
Wor
ks a
t Ups
tream
3 S
ite o
f Nan
ggal
o B
ridge
Driv
ing
Pile
Ext
ract
ing
Pile
Dem
olis
hing
of e
xist
ing
Slo
pe P
rote
ctio
nC
oncr
ete
and
Stru
ctur
e w
ork
Wet
Mas
onry
Wor
ks a
t Dow
nstre
am S
ite T
ungg
ul H
itam
Brid
geLo
catio
n I
Driv
ing
Pile
Ext
ract
ing
Pile
Dem
olis
hing
of e
xist
ing
Slo
pe P
rote
ctio
nC
oncr
ete
and
Stru
ctur
e w
ork
Wet
Mas
onry
Loca
tion
IID
rivin
g P
ileE
xtra
ctin
g P
ileD
emol
ishi
ng o
f exi
stin
g S
lope
Pro
tect
ion
Con
cret
e an
d S
truct
ure
wor
kW
et M
ason
ryFo
otpa
rth P
arak
Kop
i Brig
deP
repa
ratio
nFa
bric
atio
n of
ste
el b
rack
etIn
stal
latio
n of
Bra
ket a
t Lef
t Ab.
& P
ier
Jack
up
of G
irder
Late
ral s
hift
of g
irder
at l
eft a
butm
ent
Cha
nge
of ru
bber
bea
ring
at le
ft ab
utm
ent
Rem
oval
of e
quip
men
t and
tem
pora
ry m
ater
ial
Anti-
Earth
quak
e m
easu
rem
ent :
RC
wal
l at r
ight
abu
tmen
tS
teel
Bra
cket
of P
ier
RC
wal
l at l
eft a
butm
ent
RC
Bra
cket
at l
eft a
butm
ent
Res
tora
si o
f slo
pe p
rote
ctio
n w
orks
in fr
ont o
f lef
t Ab.
Dis
crip
tion
2010
May
June
July
Aug
ust
Sep
tem
ber
Oct
ober
Nov
embe
rW
14D
ecem
ber
W-1
W1
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
W12
W13
W26
W15
W16
W17
W18
W19
W20
W21
W22
W23
W24
W25
W27
W28
W29
W30
W31
1
23
4
5
1
2
3
4 5
6
7
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 22 Chapter 3
3.4 Cost Estimate
The basic conditions and assumptions of the cost estimate are as follows:
a. The cost estimate is made in Indonesian Rupiah (Rp). b. The exchange rate used in the cost estimate is Rp 1.00 = Yen 0.00969 at February 2010,
which was used in JICA. c. The construction cost is estimated with the unit price estimate method in principle. d. Each of the unit prices of the civil works is developed by a breakdown of unit price on the
price level of January 2010. e. The equipment cost consists of the depreciation cost, repairing cost and administration cost,
which are calculated using a rate of delivered cost in Indonesia and the Indonesian standard economical life and repairing rate. Each cost is made referring to Pedoman Pokok Pelaksanaan dengan Peralatan (P5) to determine the life time, rate of repair, maintenance and administration expenses. With regard to the operation cost of equipment, the cost of operator and the cost of petroleum, oil, lubricant and consumables are counted into the each unit cost.
f.. The contractor's expenses are counted in every unit cost proportionally. These expenses are assumed to be 20 % of direct cost to cover the cost of field administration and supervision, corporate overhead and profit, cost of assistance and back support from head office, material handling cost, insurances, bond and other incidentals.
g. JICA is included as one of the representative offices of international organizations of the Official Development Assistance that is entitled to the tax facilities provided under the Government Regulation No. 25 of 2001. Therefore, Value added tax (VAT) is not applied in the cost estimate.
Based on the above conditions and assumptions, the construction cost was estimated as follows:
- Priced Bill of Quantities: Rp. 9,549,592,900.- - Daywork : Rp. 419,671,000.- - Total Cost: Rp. 9,969,263,900.-
The detailed cost estimate is given in Table 3.9 and Table 3.10.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 23 Chapter 3
Ite
mU
nitU
nit P
rice
BK 1
-1A
mou
ntB
K 1
-2A
mou
ntB
K 2
Am
ount
KR
3-3
Am
ount
KR
5-3
Am
ount
KR
6-2
Am
ount
KR
6-3
Am
ount
BL
3-2
Am
ount
Tota
lN
o.(R
p.)
L=0
L=39
.9L=
0L=
31.7
(Rp.
)L=
90.0
(Rp.
)L=
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(Rp.
)L=
15.3
(Rp.
)L=
141.
8(R
p.)
(Rp.
) 1
GE
NE
RA
L I
TE
MS
1.1
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gres
s ph
oto
and
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ey w
orks
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16,8
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000
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000
2,50
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000
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000
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n an
d D
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otal
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pora
ry c
offe
ring
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nclu
ding
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pe I
(L=1
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m10
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000
0
3232
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00
00
072
2,86
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=8m
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00
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576,
396,
000
88
563,
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200
1610
2,47
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878,
400
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pora
ry c
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ring
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and
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mov
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00
88,
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200
88,
451,
200
88,
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109,
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600
2.3
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olish
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xist
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k Pr
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clud
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ing
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ater
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370
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00
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695,
300
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f (2)
21,1
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500
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709,
000
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270,
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OT
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pe
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truct
ural
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avat
ion
incl
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uling
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e
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ated
mat
eria
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< 10
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000
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0
00
00
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ackf
ill fr
om b
orro
w p
itcu
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00
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00 3
.1.4
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nish
ing
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n pi
le, ø
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, L =
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0
00
00
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900
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oncr
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s B
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00
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ass
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00
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00
00
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ean
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04
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00
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einf
orce
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400
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For
m w
ork
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296,
300
030
289
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00
00
00
89,4
82,6
00 3
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1 E
last
ic fi
ller,
t = 1
0 m
/msq
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000
00
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ackf
illcu
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00
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000
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00
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0 3
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obbl
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. 150
m/m
- 20
0 m
/m
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clud
ing
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ncre
te c
lass
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00
0
00
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p ho
le ø
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, L =
1.1
1 m
nos
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000
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600
00
00
00
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0 S
ub-to
tal o
f (3.
1)0
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200.
000
00
00
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.2 W
et m
ason
ry ty
pe
3
.2.1
Stru
ctur
al e
xcav
atio
n in
clud
ing
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ing o
f
e
xcav
ated
mat
eria
l, L
< 10
Km
cu.m
41,5
000
0
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,580
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1,56
164
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,500
1,42
259
,013
,000
251
10,4
16,5
002,
410
100,
015,
000
255,
806,
000
3.2
.3 B
ackf
ill fr
om b
orro
w p
itcu
.m97
,800
00
0
520
50,8
56,0
001,
561
152,
665,
800
1,42
213
9,07
1,60
025
124
,547
,800
2,41
023
5,69
8,00
060
2,83
9,20
0 3
.2.4
Fur
nish
ing
& d
rivin
g w
oode
n pi
le ø
150
m/m
, L =
3.0
mno
s67
,900
00
0
261,
765,
400
694,
685,
100
795,
364,
100
161,
086,
400
107
7,26
5,30
020
,166
,300
3.2
.5 C
oncr
ete
clas
s B
cu.m
941,
800
00
0
1413
,185
,200
4037
,672
,000
3936
,730
,200
76,
592,
600
6359
,333
,400
153,
513,
400
3.2
.6 C
oncr
ete
clas
s C1
cu.m
896,
500
00
0
65,
379,
000
1614
,344
,000
1513
,447
,500
32,
689,
500
2421
,516
,000
57,3
76,0
00 3
.2.7
Con
cret
e cl
ass
C2cu
.m89
0,80
00
0
032
28,5
05,6
0010
694
,424
,800
8676
,608
,800
1614
,252
,800
121
107,
786,
800
321,
578,
800
3.2
.8 L
ean
conc
rete
cu.m
839,
200
00
0
3428
,532
,800
114
95,6
68,8
0093
78,0
45,6
0017
14,2
66,4
0013
211
0,77
4,40
032
7,28
8,00
0 3
.2.9
Rei
nfor
cem
ent s
teel
bar
kg32
,700
00
0
1,29
242
,248
,400
3,93
412
8,64
1,80
03,
209
104,
934,
300
566
18,5
08,2
005,
837
190,
869,
900
485,
202,
600
3.2
.10
For
m w
ork
sq.m
296,
300
00
0
134
39,7
04,2
0039
211
6,14
9,60
035
310
4,59
3,90
063
18,6
66,9
0057
917
1,55
7,70
045
0,67
2,30
0 3
.2.1
1 E
last
ic fi
ller,
t = 1
0 m
/msq
.m12
6,00
00
0
019
2,39
4,00
064
8,06
4,00
043
5,41
8,00
08
1,00
8,00
072
9,07
2,00
025
,956
,000
3.2
.12
Asp
halt
seal
ing
cu.m
5,02
8,00
0
00
0
0.2
1,00
5,60
00.
42,
011,
200
0.3
1,50
8,40
00.
150
2,80
00.
52,
514,
000
7,54
2,00
0 3
.2.1
3 W
et M
ason
ry
cu.m
617,
000
00
0
6338
,871
,000
212
130,
804,
000
171
105,
507,
000
3119
,127
,000
241
148,
697,
000
443,
006,
000
3.2
.14
Wee
p ho
le ø
50
m/m
, L =
1.1
1 m
nos
70,3
000
0
034
2,39
0,20
095
6,67
8,50
092
6,46
7,60
017
1,19
5,10
015
010
,545
,000
27,2
76,4
00 3
.2.1
5 G
eote
xtile
sq.m
31,3
0025
88,
075,
400
615
19,2
49,5
0059
318
,560
,900
105
3,28
6,50
096
830
,298
,400
79,4
70,7
00 3
.2.1
6 R
ipra
p of
cob
ble
ston
e (2
00 -
500
mm
)cu
.m36
0,60
00
0
013
749
,402
,200
361
130,
176,
600
375
135,
225,
000
6724
,160
,200
700
252,
420,
000
591,
384,
000
S
ub-to
tal o
f (3.
2)0
00
333,
895,
000
1,00
6,01
7,20
089
0,49
5,90
016
0,30
6,70
01,
458,
362,
900
3,84
9,07
7,70
0 T
otal
of (
3)0
474,
260,
200
033
3,89
5,00
01,
006,
017,
200
890,
495,
900
160,
306,
700
1,45
8,36
2,90
04,
323,
337,
900
4 S
LU
ICE
WA
Y
4.1
Stru
ctur
al e
xcav
atio
n in
clud
ing
haul
ing o
f
exc
avat
ed m
ater
ial,
L <
10 K
mcu
.m41
,500
00
00
763,
154,
000
00
00
3,15
4,00
0 4
.2 B
ackf
ill fr
om b
orro
w p
itcu
.m97
,800
00
076
7,43
2,80
00
00
07,
432,
800
4.3
Fur
nish
ing
& d
rivin
g w
oode
n pi
le ø
150
m/m
, L =
4.0
mno
s82
,100
00
069
5,66
4,90
00
00
05,
664,
900
4.4
Fur
nish
ing
& d
rivin
g st
eel s
heet
pile
(YSP
II, L
= 2
.0 m
)
-
Furn
ishin
gm
1,20
0,00
00
00
3845
,600
,000
00
00
45,6
00,0
00 -
Driv
ing
m65
,900
00
038
2,50
4,20
00
00
02,
504,
200
KR
-R4
KR
-R5
BL
-R1
Des
crip
tion
BK
-R1
BK
-R3
KR
-R1
KR
-R2
Tabl
e 3.
9 (1
/2)
C
ost E
stim
ate:
Pri
ced
Bill
of Q
uant
ities
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 24 Chapter 3
Tabl
e 3.
9 (2
/2)
C
ost E
stim
ate:
Pri
ced
Bill
of Q
uant
ities
Ite
mU
nitU
nit P
rice
BK 1
-1A
mou
ntB
K 1
-2A
mou
ntB
K 2
Am
ount
KR
3-3
Am
ount
KR
5-3
Am
ount
KR
6-2
Am
ount
KR
6-3
Am
ount
BL
3-2
Am
ount
Tota
lN
o.(R
p.)
L=0
L=39
.9L=
0L=
31.7
(Rp.
)L=
90.0
(Rp.
)L=
86.8
(Rp.
)L=
15.3
(Rp.
)L=
141.
8(R
p.)
(Rp.
) 4
.5 C
oncr
ete
clas
s B
cu.m
941,
800
98,
476,
200
0
077
72,5
18,6
000
00
080
,994
,800
4.6
Lat
er s
tage
con
cret
e, c
lass
Bcu
.m97
7,00
00
00
21,
954,
000
00
00
1,95
4,00
0 4
.7 L
ean
conc
rete
cu.m
839,
200
21,
678,
400
00
1310
,909
,600
00
00
12,5
88,0
00 4
.8 R
einf
orce
men
t ste
el b
arkg
32,7
0065
221
,320
,400
0
08,
337
272,
619,
900
00
00
293,
940,
300
4.9
For
m w
ork
sq.m
296,
300
5215
,407
,600
0
025
575
,556
,500
00
00
90,9
64,1
00 4
.10
Ela
stic
fille
r, t =
10
m/m
sq.m
126,
000
225
2,00
00
0
450
4,00
00
00
075
6,00
0 4
.11
Wat
er s
top
w =
300
m/m
, t =
10
m/m
m24
4,30
04
977,
200
0
011
2,68
7,30
00
00
03,
664,
500
4.1
2 W
et m
ason
ry
cu.m
617,
000
0
00
6238
,254
,000
00
00
38,2
54,0
00 4
.13
Gra
vel b
ackf
illcu
.m11
2,70
00
00
458
51,6
16,6
000
00
051
,616
,600
4.1
4 W
eep
hole
ø 5
0m/m
, L =
0.6
0mno
s58
,100
00
05
290,
500
00
00
290,
500
4.1
5 H
and
rail
SGP
50m
496,
000
00
04
1,98
4,00
00
00
01,
984,
000
4.1
6 S
teel
ladd
er ø
19
kg52
,300
1894
1,40
00
0
1999
3,70
00
00
01,
935,
100
4.1
7 S
lide
gate
, 2.5
m x
2.0
mno
s11
8,56
0,00
00
00
111
8,56
0,00
00
00
011
8,56
0,00
0 T
otal
of (
4)49
,053
,200
00
712,
804,
600
00
00
761,
857,
800
5 P
AR
AK
KO
PI B
RID
GE
5.1
Re-
erec
tion
of P
C G
irde
rL/
S45
0,00
0,00
0
145
0,00
0,00
0 S
ub-to
tal o
f (5.
1)45
0,00
0,00
00
00
045
0,00
0,00
0 5
.2 S
truc
ture
Wor
ks
5.2
.1 C
oncr
ete
clas
s B
cu.m
941,
800
2
1,88
3,60
01,
883,
600
5.2
.2 F
orm
wor
ksq
.m29
6,30
0
82,
370,
400
2,37
0,40
0 5
.2.3
Rei
nfor
cem
ent s
teel
bar
D13
-D25
(SD
345)
kg41
,600
27
411
,398
,400
11,3
98,4
00 5
.2.4
Rei
nfor
cem
ent s
teel
bar
D29
-D51
(SD
345)
kg41
,600
22
69,
401,
600
9,40
1,60
0 5
.2.5
Ste
el B
rack
et,P
late
PL,
SS40
0kg
70,3
00
1,21
685
,484
,800
85,4
84,8
00 5
.2.6
Ste
el B
rack
et,D
B,N
T,W
Skg
60,9
00
224
13,6
41,6
0013
,641
,600
5.2
.7 A
ncho
r Dril
ling
Hol
e Æ
45,L
=0.6
25 m
m
1,06
5,60
0
2021
,312
,000
21,3
12,0
00 5
.2.8
Anc
hor D
rillin
g H
ole
Æ39
,L=0
.445
mm
1,06
5,60
0
1718
,115
,200
18,1
15,2
00 5
.2.9
Anc
hor D
rillin
g H
ole
Æ32
,L=0
.640
mm
1,06
5,60
0
2021
,312
,000
21,3
12,0
00 5
.2.1
0 W
eld
(File
t Wel
d 7
mm
)m
201,
600
39
7,86
2,40
07,
862,
400
5.2
.11
Exp
ansio
n R
ubbe
r,400
x150
x50(
Poly
chol
orop
ren)
shee
t1,
400,
000
2
2,80
0,00
02,
800,
000
5.2
.12
Exp
ansio
n R
ubbe
r,700
x150
x50(
Poly
chol
orop
ren)
shee
t1,
800,
000
2
3,60
0,00
03,
600,
000
5.2
.13
Sho
e, R
ubbe
r Bea
ring
Pad
400x
400x
30pc
s1,
300,
000
2
2,60
0,00
02,
600,
000
5.2
.14
Sta
plin
g (1
3x22
x200
cm
)cu
.m1,
000,
000
2
2,00
0,00
02,
000,
000
5.2
.15
Chi
ppin
g co
ncre
tesq
.m14
3,40
0
91,
290,
600
1,29
0,60
0 5
.2.1
6 S
uppo
rtL/
S40
0,00
0
140
0,00
040
0,00
0 5
.2.1
7 S
caff
old
wor
kL/
S3,
000,
000
1
3,00
0,00
03,
000,
000
Sub
-tota
l of (
5.2)
20
8,47
2,60
00
00
020
8,47
2,60
0T
otal
of (
5)0
065
8,47
2,60
00
00
00
658,
472,
600
6 I
NSP
EC
TIO
N R
OA
D
6.1
Em
bank
men
t fro
m b
orro
w p
itcu
.m11
8,70
00
300
35,6
10,0
000
252
29,9
12,4
0060
071
,220
,000
582
69,0
83,4
0015
017
,805
,000
912
108,
254,
400
331,
885,
200
6.2
Sub
grad
e sq
.m36
,200
015
05,
430,
000
012
64,
561,
200
300
10,8
60,0
0029
110
,534
,200
752,
715,
000
456
16,5
07,2
0050
,607
,600
6.3
Gra
vel p
avem
ent,
t = 2
60 m
/mcu
.m14
6,90
00
395,
729,
100
033
4,84
7,70
078
11,4
58,2
0076
11,1
64,4
0020
2,93
8,00
011
917
,481
,100
53,6
18,5
00 6
.4 A
spha
lt w
earin
g su
rfac
e, t
= 5
cmsq
.m11
7,00
00
150
17,5
50,0
000
126
14,7
42,0
0030
035
,100
,000
291
34,0
47,0
0075
8,77
5,00
045
653
,352
,000
163,
566,
000
6.5
Sod
ding
sq.m
22,4
000
274
6,13
7,60
00
230
5,15
2,00
054
712
,252
,800
531
11,8
94,4
0013
73,
068,
800
832
18,6
36,8
0057
,142
,400
Tot
al o
f (6)
070
,456
,700
059
,215
,300
140,
891,
000
136,
723,
400
35,3
01,8
0021
4,23
1,50
065
6,81
9,70
0 T
otal
of (
1) -
(6)
70,1
81,2
001,
008,
496,
900
662,
272,
600
1,45
9,78
2,40
01,
770,
117,
200
1,62
9,99
0,00
031
8,14
8,20
02,
630,
604,
400
9,54
9,59
2,90
0
KR
-R4
KR
-R5
BL
-R1
Des
crip
tion
BK
-R1
BK
-R3
KR
-R1
KR
-R2
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 25 Chapter 3
Table 3.10 Cost Estimate: Priced Daywork
ITEM UNIT PRICE AMOUNTNO. Rp. Rp.
1 Labour 1.1 Foreman hrs 600 9,800 5,880,000 1.2 Skilled Labor hrs 6,400 6,800 43,520,000 1.3 Common labor hrs 800 6,000 4,800,000 1.4 Mason hrs 2,000 8,300 16,600,000 1.5 Concrete worker hrs 2,800 8,300 23,240,000
Total of (1) 94,040,000 2 Materials 2.1 Sand bag including filling sand pcs 250 10,000 2,500,000 2.2 Gravel cu.m 60 114,000 6,840,000 2.3 Sand cu.m 160 108,000 17,280,000 2.4 Cement (50 kg) bag 1,400 66,000 92,400,000 2.5 Stone masonry cu.m 220 87,600 19,272,000 2.6 Cobble stone (200 - 500 mm) cu.m 200 296,520 59,304,000 2.7 Soil from borrow pit cu.m 1,000 74,500 74,500,000
Total of (2) 272,096,000 3 Constructional Plant 3.1 Giant breaker hrs 18 290,000 5,220,000 3.2 Backhoe hrs 90 443,500 39,915,000 3.3 Concrete mixer 0.3 cu.m hrs 420 13,000 5,460,000 3.4 Concrete vibrator hrs 420 7,000 2,940,000
Su-total of (3) 53,535,000 Total of (1) - (3) 419,671,000
DESCRIPTION UNIT Q'TY
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 26 Chapter 4
4 SELECTION OF CONTRACTOR(S)
4.1 Selection Process of Contractor
The construction works of the Project were planned to be executed at one (1) contract package. Selection of the Contractor for the contract package was implemented through LCB procedures. The selection process of the Contractor was as follows:
Table 4.1 Selection Process of Contractor(s) Date Events
March 29, 2010 Invitation for Bids (Media Indonesia)
March 30 –April 06, 2010 Distribution of Documents at JICA Indonesia Office and Project
Working Group Office in Padang.
April 07, 2010 Pre-bid Meeting at Project Working Group Office in Padang
April 07, 2010 Joint Site Visit in Padang
April 13, 2010 Last date for questions from Bidders
April 15, 2010 Issue of Addendum No.1 and Answer to Questionnaire from
Bidders
April 26, 2010 Submission of Bid (10:00 -14:00), and immediately Opening of
Bids thereafter.
April 26 – May 5, 2010 Bid Evaluation
May 07, 2010 Issue of Letter of Acceptance to successful bidder (P.T.
WASKITA KARYA), Pre-Contract Meeting with P.T. WASKITA
KARYA
May 18, 2010 Conclusion of Contract (Contract Signing)
May 19, 2010 Issue of Notice to Proceed to P.T. WASKITA KARYA
Details of the Selection process are described below: 4.2 Preparation of Bidding Documents
Based on the detailed design and the cost estimate, the bidding documents of the construction works were prepared, referring to “The Sample Bidding Documents under Japanese ODA Loans: Procurement of Civil Works Smaller Contracts”, The Bidding Documents consist of the following volumes: Volume I Invitation for Bids Section 1 : Instructions to Bidders Section 2 : Conditions of Contract Section 3 : Contract Data Section 5 : Form of Bid, Qualification Information, Letter of Acceptance and Integrity Pact
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 27 Chapter 4
Section 6 : Bill of Quantities Section 7 : Form of Agreement Section 8 : Security Forms Volume II Section 4 : Specifications Part I : General Specifications Part II : Technical Specifications Volume III Section 9 : Drawings Engineer’s Estimate of the Works is Rp. 9,969,263,900 including daywork. 4.3 Bidding
(1) Advertisement and Document Distribution Advertisement of the bid was made through MEDIA INDONESIA on March 29, 2010. Following six (6) companies received the Bidding Documents at JICA Indonesia Office in Jakarta and the Working Group Office in Padang.
1. P.T. Duta Graha Indah, Tbk 2. P.T. Waskita Karya 3. P.T. Pembangunan Perumahan, Tbk 4. P.T. Basuki Rahmanta Putra 5. P.T. Nindya Karya 6. P.T. Gunakarya Nusantara
(2) Pre-bid Meeting and Joint Site Visit The Pre-bid Meeting and Joint Site Visit were held on April 07, 2010 in Padang. After those, P.T, Basuki Rahmanta Putra withdrew his intention to the bid. (3) Issue of Addendum No.1 On April 15, Addendum No.1 to Bidding Documents was issued including the Minutes of Pre-bid Meeting and Answer to Questionnaire from the bidders. (4) Bid Submission and Opening The Bidding Documents were distributed to six (6) companies. Among them, the three (3) bidders submitted their Bids at JICA Indonesia Office during a period from 10:00 to 14:00 of Western Indonesian Standard Time on April 26, 2010. There is no bid by the joint venture. Just after closing of submission of bids, the bids were publicly opened one by one in the presence of the Employer (JICA), Consultant team and representatives of three (3) bidders. Read-out Bid Prices at the Bid Opening are as follows:
Table 4.2 Read-out Bid prices No. Bidder Bid Price 1. PT. Pembangunan Perumahan, Tbk Rp. 10,742,990,000.- 2. PT. Waskita Karya Rp. 9,754,827,000.- 3. PT. Nindya Karya Rp. 10,617,926,947.76-
Reference: Engineer’s Estimate Rp. 9,969,263,900.-
One (1) Bidder offered a price 4.4 Bid Evaluation and
(1) Bid Evaluation The bid evaluation was condu
Fig
Project for Post-earthquaWater Resources Ma
28
e lower than the Engineer’s Estimate.
d Contract
ucted in accordance with the following procedure
gure 4.1 Bid Evaluation Procedure
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 4
and checklist:
Table 4.3
Project for Post-earthquaWater Resources Ma
29
Checklist of Preliminary Examination (1/2)
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 4
Table 4.3
Project for Post-earthquaWater Resources Ma
30
Checklist of Preliminary Examination (2/2)
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 4
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 31 Chapter 4
After confirmation of contents of original document and copied document of respective bids, the preliminary examination through pass-or-fail method was made on all the bids to confirm completeness of the documents and conformity with required qualifications. As the results, three (3) bids, that is, all of the bids were determined substantially responsive to requirements by the bidding documents. Through the arithmetic checking, a small number of arithmetic errors in some bids were found, but no significant difference between the original price and corrected one was observed. Based on the corrected bid prices, the bids were ranked as follows:
Table 4.4 Bid Price after Detailed Examination No. Bidder Corrected Bid Price 1. P.T. Waskita Karya Rp. 9,754,804,598.- 2. P.T. Nindya Karya Rp. 10,617,899,171.- 3. P.T. Pembangunan Perumahan, Tbk Rp. 10,742,971,539.-
Engineer’s Estimate Rp. 9,969,263,900.- To examine the unbalanced bid prices from the engineers’ estimate, the corrected bid prices were compared with the engineers’ estimate. There are some low prices in the bids. However, it is not serious in consideration of their bid prices. It is not required to consider increase of the present performance security. In due consideration of all the above, it was recommended that the Bid offered by P.T. Waskita Karya was judged to be the lowest evaluated responsive one.
Table 4.5 Proposed Contract Award 1. Lowest evaluated responsive bidder
(Proposed for contract award) (a) Name: P.T. Waskita Karya (b) Address: Jl. Ahmad Yani No.19, Padang
2. Principle country of origin of goods/materials
Republic of Indonesia
3. Estimated date (month, year) of contract signing
May 2010
4. Estimated delivery to project site/completion period
January 2011
5. Bid Price (Read-out) Rp. 9,754,827,000. 6. Correction for Errors Rp. – 22,402. 7. Discount Not Applied 8. Other Adjustment Not Applied 9. Proposed Award Rp. 9,754,804,598. 10. Required Performance Guarantee
(10% of Contract Price) Rp. 975,480,460.
The Bid Evaluation Report was prepared and submitted to the JICA Indonesia Office on May 05, 2010. (2) Contract Award Based on the bid evaluation result, the Letter of Acceptance was issued to P.T. Waskita Karya on May 07, 2010. The corrected bid price of P.T. Waskita Karya is shown in Table 4.6.
Tab
Project for Post-earthquaWater Resources Ma
32
ble 4.6 Corrected Bid Price (1/5)
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 4
Tabl
e 4.
6
Cor
rect
ed B
id P
rice
(2/5
)
Project for Post-earthquaWater Resources Ma
33
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 4
Tabl
e 4.
6
Cor
rect
ed B
id P
rice
(3/5
)
Project for Post-earthquaWater Resources Ma
34
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 4
Tabl
e 4.
6
Cor
rect
ed B
id P
rice
(4/5
)
Project for Post-earthquaWater Resources Ma
35
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 4
Tabl
e 4.
6
Cor
rect
ed B
id P
rice
(5/5
)
Project for Post-earthquaWater Resources Ma
36
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 4
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 37 Chapter 4
(3) Pre-Contract Meeting Just after the issue of the Letter of Acceptance to P.T. Waskita Karya on May 07, 2010, the Pre-Contract Meeting with P.T. Waskita Karya was held in order to discuss the administrative matters regarding the contract and the construction works. During the meeting, draft contract document was handed over to P.T. Waskita Karya. (4) Contract Signing The contract agreement between JICA Indonesia Office and P.T. Waskita Karya was signed and concluded on May 18, 2010. (5) Notice to Proceed The Notice to Proceed for the construction works was issued on May 19, 2010 and The construction works has started officially.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 38 Chapter 5
5. CONSTRUCTION WORKS AND CONSTRUCTION SUPERVISION
5.1 Establishment of Construction Supervision System
The Project was implemented with the organization setup as shown in Figure 2.2 in the Sub-section 2.2.2 of the Chapter 2 in this Report. The construction works in the field was implemented in accordance with the conditions, specifications and drawings in the contract form May 19, 2010, in response to the Issuance of Notice to Proceed. The Project Working Group including the JICA Consultant Team assisted all activities of the supervision of the construction works and reporting the progress and plan to the JICA Indonesia Office as the Employer and the Project Steering Committee. In order to facilitate the assistance of the construction supervision in the field, the construction supervision system was established as follows: (1) Organization of Project Working Group during Construction Stage The organization of the Project Working Group for assistance of the construction supervision in the field was set up as shown in Figure 5.1.
Figure 5.1 Organization of Project Working Group (Construction Supervision) In addition to the members of the Project Working Group proposed by Dinas PSDA, West Sumatra, the BWS Sumatera V Office assigned one (1) Inspector in the field. Daily activities of supervision were done by the Inspectors and the JICA Consultant Team. Information of the construction works were reported to the Project Working Group by them, in addition to the report from the Contractor. Important instructions and approval, which affect the progress, quantity and quality of the construction works, were done by the Engineer after discussion with the Project Working Group.
ChairmanKepala BWS Sumatera V
Ir. Agus Setiawan, Dipl.HE
Kepala Bidang Irigasi & Rawa
Yenwar, CES.
Kepala Bidang Sungai, Pantai & Konservasi
Ir. Andy Ikhvan, ME
Kepala Bidang Bina Teknik
Firdaus Salim, ME.
Kepala SNVT
Adek Rizaldi, ST,M.Tech.
Kasi Pelaksanaan SDA
Ir. Rifda Surian, Sp.
Leader(The Engineer)
Y.USUI
Kepla Sekisi Sungai
Syafril Daus, ST,MT.
PPK Sungai
Amrinas, ST.
Project Coordinator
M.KODAMA
Deputy Leader(The Engineer R.)
Brotokusumo
Bridge Engr.
Y.MATSUMOTO
Construction Engr. I
Dainuri
Bridge Engr.
Kismunadi
Construction Engr. II
Masrinedi
Inspector
Nurman, ST.
Dinas PSDA, Sumatera Barat
BWS Sumatera V JICA Consultant Team
Kepla Subdirectorat PelaksanWilayah Barat
Ir. Tri Bayu Aji
Directorate of River, Lake and Reservoir, DGWR, PU
As of June, 2010
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 39 Chapter 5
Instructions and approval of the following matter were determined to be done by the JICA Indonesia Office as the Employer under the assistance of the Project Working Group.
- Contract modification (increasing of contract amount, extension of construction period and penalty to the Contractor)
- Approval of payment request. (2) Office of Project Working Group The office of Project Working Group including the JICA Consultant Team was set up in BWS Sumatera V Office. Address of the office is as follows:
Office Name: Project Working Group Office on JICA Project for Post-earthquake Rehabilitation of Water Resources Management Facilities in Padang Address: C/O Balai Wilayah Sungai Sumatera V Jl. Banjir Kanal No. 1, Parak Kopi, Padang 25139 Tel & Fax: 0751-891700
(3) Management Meeting (Joint Progress Meeting) In order to review the plans of remaining works and to deal with the matters raised during execution of the Works, the Management Meeting were held between the Project Working Group and the Contractor once a week in principle and at least once two (2) weeks in the condition of smooth execution of the Works. The business of the Management Meeting is as follows:
- Reconfirmation of the Minutes of last Management Meeting. - Confirmation of the results of the actions determined at the previous meeting. - Progress of the works - Review of the plan of remaining works (if required). - Discussion of drawings and documents submitted by the Contractor. - Matters raised during execution of the works and actions to be taken (if required).
The minutes of the meeting were recorded by the JICA Consultant Team and distributed to the participants, to confirm the determined actions. (4) Monthly Joint Inspection In order to confirm the monthly progress of the construction works, the joint inspection between the Project Working Group and the Contractor were carried out at the end of every month. Based on the joint inspection, the monthly progress report was prepared by the Contractor. (5) Submission and Review or Approval of Drawings and Documents The drawings and documents prepared and submitted by the Contractor were reviewed and approved in accordance with the following flow:
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 40 Chapter 5
Figure 5.2 Review or Approval of Drawings and Documents (6) Report to the Employer and Project Steering Committee The JICA Consultant Team reported the progress and schedule of the construction works to the JICA Indonesia Office as the Employer and members of the Project Steering Committee once a month (around 10th of every month) or on occasion. The materials of the report are as follows:
- Monthly progress report submitted by the Contractor - Monthly progress report by the JICA Consultant Team (including list of outgoing letters
and incoming letters and Minutes of Management Meeting). - Other materials (if any).
(7) Use of Daywork In order to repair minor damages of the facilities and to prepare the contingency for the rehabilitation works, the daywork was employed in the construction contract. Objective sites for use of the daywork were determined under the discussion of the Project Working Group, after confirmation of the actual work quantities of respective original work sites based on the survey results by the Contractor. (8) Checklists and Forms for Construction Supervision. The following checklists and forms were prepared and applied during the construction supervision:
- Form for minute of management meeting - Workflow for check of drawings and documents - Checklist for pamphlets, diagram and similar data for equipments and materials - Checklist for trial mixes of concrete - Form of daily report, weekly progress and monthly progress - Form of progress payment request
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 41 Chapter 5
(9) Bench Mark (BM) of Survey Control System of the Works There are five (5) BMs of the BAKOSURTANAL and PU in Padang City as shown in Table 5.1. In consideration of the condition of the BMs and settlement during the earth-quake, the BM No. TTG 1351 was applied as the BM of the survey control system of the Works.
Table 5.1 BMs in Padang City Name Coordinate Geodetic Coordinate UTM Elevation
(m) Location
Latitude Longitude X(E) Y(N) Z TTG 1350
-0.9517o 100.3761o - - 7.402 Jl. Stasiun K.A
TTG 1351
-0.9550o 100.3614o 652,356.158 9,895,646.595 5.703 Hospital Dr. M. Jamil.
TTG 1353
-0.8717o 100.3467o - - 3.386 Jl. Prof. Hamka, Air Tawar Timur
TTG.. (not clear)
- - 649,826.326 9,893,333.035 - Top of Mountain Padang
PU-1 - - - - + 4.370 (MSL)
Taman Kota
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 42 Chapter 5
5.2 Organization of Contractor
In order to implement the Works of the Project, the Contractor (P.T. WASKITA KARYA) set up the organization of the field, site facilities including site office, camp, warehouse, spoil bank, borrow pit, quarry site, etc.. The organization of the field is shown in Figure 5.3 and the locations of the site facilities are presented in Figure 5.4, respectively.
Figure 5.3 Organization of the Contractor in Field
Project for Post-earthquaWater Resources Ma
43
ake Rehabilitation of anagement Facilities
in Padang
Progress Report
Chapter 5
Figu
re 5
.4
Loc
atio
n of
Site
Fac
ilitie
s
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 44 Chapter 5
5.3 Construction Period and Construction Time Schedule
The construction period of the Works was amended from the original contract as follows: Original Contract (No. 100517-0020-A00)
- Construction Period: 240 days from May 19, 2010 (date to issuance of the Notice to Proceed) to January 13, 2011.
Amendment No.1 (No. 100517-0020-A01) - Construction Period: 270 days from May 19, 2010 to February 12, 2011
The Contractor prepared the construction time schedule in the original contract. The time schedule was revised twice due to the delay of the works caused by extreme weather condition. Revision of the construction time schedule and actual progress are shown in Table 5.2 and Figure 5.5.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 45 Chapter 5
Tabl
e 5.
2
Con
stru
ctio
n Ti
me
Sche
dule
and
Pro
gres
s
NO
.19
-23
24-3
031
-06
07-1
314
-20
21-2
728
-04
05-1
112
-18
19-2
526
-01
02-0
809
-15
16-2
223
-29
30-0
506
-12
13-1
920
-26
27-0
304
-10
11-1
718
-24
25-3
101
-07
08-1
415
-21
22-2
829
-05
06-1
213
-19
20-2
627
-02
03-0
910
-13
14-2
324
-30
31-6
7-12
1Pr
epar
atio
n
0.00
40.
004
0.00
40.
004
0.00
40.
004
0.00
40.
004
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004
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004
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004
0.00
40.
004
0.00
40.
004
0.00
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004
0.00
40.
004
0.00
4
0.04
60.
046
0.04
60.
046
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60.
046
0.04
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070
0.07
0
2W
orks
aro
und
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s sl
uice
(BK
-R1)
3Fo
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rth
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k K
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rigde
(BK
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0.19
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196
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196
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513
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30.
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30.
248
0.22
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226
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orks
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1)
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R-R
2)
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& K
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m S
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dge
(BL-
R1)
8D
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0.16
60.
166
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166
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166
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166
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166
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166
Orig
inal
Sch
edul
e0.
050.
050.
220.
221.
261.
491.
901.
871.
962.
553.
084.
144.
054.
055.
244.
240.
000.
004.
965.
625.
826.
328.
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194.
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Orig
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Sch
edul
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ccum
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0.05
0.10
0.32
0.53
1.80
3.29
5.19
7.05
9.01
11.5
614
.64
18.7
822
.82
26.8
732
.11
36.3
536
.35
36.3
541
.31
46.9
452
.76
59.0
767
.19
74.4
379
.62
84.2
788
.02
91.4
295
.48
98.1
099
.09
99.5
299
.69
99.9
310
0.0
R
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ks :
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ched
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-
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Rev
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Sch
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201
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- 2
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Stru
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ork
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oad
6.1
Tem
pora
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incl
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oad
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incl
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mov
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and
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oad
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Tem
pora
ry c
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Stru
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ectio
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oad
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of P
C G
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orks
4.1
Tem
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incl
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Dec
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r
2.1
Tem
pora
ry c
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incl
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mov
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2.2
Stru
ctur
e w
ork
and
Insp
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n R
oad
1.1
Pro
gres
s ph
oto
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ey w
orks
1.2
Mob
iliza
tion
and
Dem
obiliz
atio
n
July
ITEM
DES
CR
IPTI
ON
2010
2011
May
June
Janu
ary
Febr
uary
Aug
ust
Sept
embe
rO
ctob
erN
ovem
ber
1stReviced Schedule (August 30, 2010)
2ndReviced Schedule (January 14, 2011)
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 46 Chapter 5
Figu
re 5
.5
Con
stru
ctio
n Sc
hedu
le a
nd P
rogr
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W1
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
W12
W13
W14
W15
W16
W17
W18
W19
W20
W21
W22
W23
W24
W25
W26
W27
W28
W29
W30
W31
W32
W33
W34
W35
W36
W37
W38
W39
70
2010
2011
0
Sep
tem
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Oct
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Nov
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10
May
June
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ust
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8090100
2030405060
0102030405060708090100
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le
1stReviced Schedule (August 30,
2ndReviced Schedule (January 14, 2011)
% of Works
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 47 Chapter 5
5.4 Construction Progress
5.4.1 Progress of the Works
The rehabilitation works were executed by the Contractor (P.T. WASKITA KARYA) under the established construction supervision system with a period of 270 days from May 19, 2010 to February 12, 2011. The progress of the works is summarized in Table 5.2 and Figure 5.5. During the construction period of the works, minor modifications of the original designs were made depending on the situations of the sites. In addition, the construction period was extended for 30 days from 240 days of the original contract due to the extreme weather condition, site arrangement with bridge work, etc. Those variations of the Works and extension of the construction period were summarized to the following amendments to the contract.
- Amendment No. 1 (Contract No. 100517-0020-A01) dated on January 12, 2011 on extension of intended completion date
- Amendment No. 2 (Contract No. 100517-0020-A02) dated on February 04, 2011 on change of Bill of Quantities
All construction works were officially accepted by the Employer (JICA Indonesia Office) on February 12, 2011 and the works were taken over by the Ministry of Public Works of the Republic of Indonesia, in accordance with “Memorandum of Understanding between Japan International Cooperation Agency and The Ministry of Public Works of The Republic of Indonesia on Project for Post-earthquake Rehabilitation of Water Resources Management Facilities in Padang” dated April 22, 2010. The Defects Notice Period of 180 days commenced on February 13, 2011 and will end on August 11, 2011. The contents of two (2) amendments and completion process of the Works are described hereunder: 5.4.2 Amendment No.1 (Contract No. 100517-0020-A01)
Amendment No.1 to the Contract was concluded on January 12, 2011. Content and background of the Amendment No. 1 are as follows: (1) Content of Amendment No. 1 In order to cope with delay of the work progress, the Intended Completion Date was extended for thirty (30) days from two hundred forty (240) days from the date of commencement of the Works. That is, the Intended Completion Date was on February 12, 2011. (2) Background of Amendment No. 1
(a) Delay due to weather condition Due to “La ni~na” phenomena, there were extreme rainfall depth and heavy rainfall days in Padang City during the construction period. Therefore, there were not sufficient workable days and the Works were forced to be delayed. The rainfall condition from May to December in 2010 is presented in Table 5.3.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 48 Chapter 5
Table 5.3 Rainfall Condition in 2010
Source: Data from Tabing Meteorological Station
(b) Delay of commencement of works at BK-R1 due to coordination of bridge works After the commencement of the construction works of the Project, unscheduled bridgeworks by the Provincial Road Department were recommenced at the just downstream site of BK-R1 at the river mouth of Flood Relief Channel. The yard for materials and the access road scheduled for the works of BK-R1 were used by the bridgeworks. Therefore, the Works of BK-R1 were forced to commence from December 2010. (c) Delay due to modification of large scale coffering works at BK-R1 In addition to above, the coffering works of BK-R1 required modification to the larger scale one due to the situation of the site. Therefore, completion of the coffering works was delayed.
5.4.3 Amendment No. 2 (Contract No. 100517-0020-A02)
Amendment No. 2 to the Contract was concluded on February 04, 2011. Content and background of the Amendment No. 2 are as follows: (1) Content of Amendment No. 2 The Amendment No.1 summarized the final bill of quantities and an addendum of the technical specifications in the original contract. As the results of the variation of the Works, the contract amount decreased to Rp. 9,228,567,657. (2) Background of Amendment No. 2 The rehabilitation works were designed based on the as-built drawings of the construction works of the previous Padang Area Flood Control Projects (I) and (II). After the commencement of the Works, the survey works was carried out at the respective sites. The construction works were executed applying the modified design based on the survey results. Variations of the Works are summarized as follows:
Item May Jun. Jul Aug Sep Oct Nov Dec TotalAverage 2005-2009
Average Rainfall Depth (mm) 183.4 313.9 361.1 284.9 347.6 457.2 373.7 495.9 2,817.7Rainfall Day (day) 13 13 13 15 14 18 20 21 127Rainfall Day over 20 mm (day) 3 5 5 4 5 7 6 7 42
Record in 2010Rainfall Depth in 2010 (mm) 280.7 346.2 366.3 312.9 528.5 516.7 539.2 165.4 3,055.9Rainfall Day (day) 8 13 19 13 19 16 21 13 122Rainfall Days over 20 mm (day) 6 6 5 7 6 7 9 2 48
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 49 Chapter 5
Table 5.4 Summary of Variation of the Works (1/4)
Site No. BK-R1 (Works around Purus Sluice at right side of Flood Relief Channel) Works dike, slope protection (L=39.9), wing wall at outlet of sluice Variation/ reason
Variation No.1: Content: Change of the coffering works from steel sheet piles with sand bags to steel sheet pile with earth dam covered with sand bags. Reason: Depending on the site condition, it was difficult to coffer the rehabilitation site by the steel sheet piles with sand bags. Therefore, sand bags were changed to the earth dam covered with sand bags, as shown below: In addition, steel sheet piles for support beams below the low water level were cut and buried in the slope protection work. Increased amount of the cost was supposed to be appropriated from the cost of the daywork.
Variation No. 2: Content: Change of slope protection works at the downstream side of Purus Sluice from full scale rehabilitation to partial repair. Reason: After the coffering works for the downstream side, it was confirmed that the foundation of the slope protection works was in good condition. Therefore, only upper half of the slope protection was repaired.
Variation No. 3: Content: Cancelling of the works at upstream side of Purus Sluice Reason: The dike and slope protection works at the upstream side of Purus Sluice had minor damages by the earthquake. In consideration of the condition of foundation of the slope protection works at downstream site, it is no fear of the damages of the foundation of the upstream slope protection works.
Variation No.4: Content: Replacement and maintenance of sluice gates (2 leaves) Reason: Due to the vibrations by the earthquake and corrosion by the sea water intrusion, the sluice gates were not able to function properly.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 50 Chapter 5
Table 5.4 Summary of Variation of the Works (2/4)
Site No. BK-R3 (Rehabilitation works of Parak Kopi footpath bridge along Flood Relief Channel)
Works Re-erection of girder, anti-seismic measure at abutments and pier Variation No variation
Site No. KR-R1 (Works around K.8 Sluiceway at left side of Kuranji River) Works Sluiceway, dike, slope protection (L=31.7m) Variation/ reason
Variation No. 1: Content: Re-installation of access road to inspection road at dike crown Reason: In order reconstruct the sluice, the access road required to remove. Therefore, the access road was reconstructed after the reconstruction of the sluice.
Variation No. 2: Content: Installation of flap gate Reason: Flap gate near the K.8 Sluice damaged by the earthquake was washed away and inundation damages occurred in the inland. In response to the request from the members of the Project Working Group, the flap gate was re-installed.
Variation No.3: Content: Repair of small part of slope protection work beside the work site and removal of sediment in the drainage canal into K.8 Sluice. The works were done as the daywork. Reason: To maintain the facilities rehabilitated by the Works.
Site No. KR-R2 (Works at downstream site of Nanggalo Bridge along right bank of
Kuranji River) Works Dike, slope protection (L=90.0m) Variation
No variation
Site No. KR-R3 (Works at upstream site of Nanggalo Bridge along left bank of Kuranji River
Works Repair of slope protection work (L=89.9m) Variation
Variation: Content: Partial repair of the slope protection work near the work sites of Kuranji River. The works were done as the daywork. Reason; Cracks of the slope protection by the earthquake were expanded by the floods and there was a fear of the collapse of the slope protection works. Therefore, the slope protection works repaired partially.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 51 Chapter 5
Table 5.4 Summary of Variation of the Works (3/4)
Site No. KR-R4 (Works at upstream site of Nanggalo Bridge along left bank of Kuranji River)
Works Dike, slope protection (L=86.8m) Variation/ reason
Variation: Content: Modification of embedment depth of the slope protection work with about 1.3m Reason: The work site is located at the outer bend of the river channel and there was sever local scouring. In order to cope with this local scouring, the foundation of slope protection work was embedded.
Site No. KR-R5 Works at upstream site of Nanggalo Bridge along left bank of Kuranji
River) Works Dike, slope protection (L=15.3m) Variation/ reason
Variation: Content: Pavement of access road to the works sites of KR-R3、KR-R4、KR-R5, with L=185m Reason: The access road is only road to access the inspection road for the dike crown and was without pavement. In respose to the request from the River Basin office based on expectation of the residents, the asphalt pavement works were carried out at the same time with the pavement works of the construction sites.
Site No. BL-R1 Works at downstream site of Tunggul Hitam Bridge along right bank of
Balimbing River Works Dike, slope protection (L=141.8m) Variation
No variation
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 52 Chapter 5
Table 5.4 Summary of Variation of the Works (4/4) Site No. All sites Works Pavement of dike crown Variation
Variation No.1: Content: Change of material of the road bed of inspection road from Gravel to Base Coarse Class A. Reason: Procurement of the gravel materials became difficult due to delay of annual approval of extraction. Therefore, the road bed material changed to the Base Coarse Class A, which were made of the crushed stones.
Variation No.2: Content: Addendum of the technical specification of Base Coarse from Class B to Class A. Reason: Class B was specified in the technical specification of the contract documents as the material for the sub-base material of road. However, Class B materials have no enough strength for the base of the asphalt covering. Therefore, the technical specifications of Base Coarse were modifies from Class B to Class A.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Progress Report 53 Chapter 5
5.4.4 Completion of the Works
Completion of the Works was confirmed as the following manners: (1) Submittal of Application of Completion Certificate of the Works by the Contractor on
February 06, 2011 (2) First joint inspection between the Project Working Group and the Contractor on February
08, 2011. Visual inspection was carried out and the Contractor cleaned up the sites based on the
inspection results. (3) Examination of related documents by the JICA Consultant Team from February 07 to
February 09, 2011 (4) Second joint inspection among the representative of the Employer, the Project Working
Group and the Contractor. Based on the results of document examination and the first joint inspection, the second
inspection was carried out. As the results of the second inspection, the Project Working Group recommended that the works were acceptable with the completion date of February 12, 2010 and Taking Over of the works was able to certified with the following conditions: - The Defects Notice Period of 180 days commenced on February 13, 2011. - The Ministry of Public Works of the Republic of Indonesia takes over the Site and
the Works after the issuance of this Certificate of Completion, in accordance with the Article 48 in the Condition of Contract.
(5) Issuance of Certificate of Completion by the Employer (JICA Indonesia Office) on February 14, 2011, with the completion date of February 12, 2011.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 54 Chapter 6
6. CONTRACT COST AND DISBURSEMENT
6.1 Contract Cost
During the construction period, minor modifications of the Works were made and the contract cost was finally revised in the Amendment No. 2 to Contract dated February 04, 2011, as follows:
- Original Contract Amount: Rp. 9,754,804,598. - Amendment No. 2: Rp. 9,228,567,657. (Reduction Rp. 526,236,941.,
5.4 % of the original amount) Summary of the priced bill of quantities, the breakdown of bill of quantities and breakdown of daywork in the Amendment No. 2 are shown in Table 6.1, Table 6.2 and Table 6.3, respectively. In addition, Breakdown of bill of quantities for each site is shown in Table 6.4.
Table 6.1 Summary of Priced Bill of Quantities
Scheduled AmountNo. Item Original Amendment No.2 +/-
(Rp.) (Rp.) (Rp.) A BILL
1 General Item 57,805,000 57,805,000 02 Preparatory Works 3,443,784,385 3,574,063,797 130,279,4123 Slope Protection 4,226,007,623 3,879,279,859 -346,727,7644 Sluiceway 609,853,127 703,233,756 93,380,6295 Parak Kopi Bridge 312,033,596 286,829,564 -25,204,0326 Inspection Road 620,325,227 602,649,359 -17,675,868
Subtotal of Bill 9,269,808,958 9,103,861,335 -165,947,623 B DAYWORK
1 Labour 99,450,000 31,866,000 -67,584,0002 Materials 331,270,000 82,346,860 -248,923,1403 Constructional Plant 54,275,640 10,493,462 -43,782,178
Subtotal of Daywork 484,995,640 124,706,322 -360,289,318 C Grand Total 9,754,804,598 9,228,567,657 -526,236,941
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 55 Chapter 6
Tabl
e 6.
2
Bre
akdo
wn
of P
rice
d B
ill o
f Qua
ntiti
es (1
/3)
Qua
ntity
Item
No.
Des
crip
tion
Unit
Orig
inal
Amen
dmen
tNo
.2+/
-Un
it Pr
ice
Orig
inal
Amen
dmen
tNo
.2+/
-
(R
p.)
(Rp.
)(R
p.)
(Rp.
) 1
GEN
ERAL
ITEM
S 1
.1 P
rogr
ess
phot
o an
d Su
rvey
wor
ksL/
S1
10
12,5
00,0
0012
,500
,000
12,5
00,0
000
1.2
Mob
ilizat
ion
and
Dem
obiliz
atio
n L
/S1
10
45,3
05,0
0045
,305
,000
45,3
05,0
000
Tot
al o
f (1)
57
,805
,000
57,8
05,0
000
2 P
REP
ARAT
OR
Y W
OR
KS
2.1
Tem
pora
ry c
offe
ring
by s
teel
she
et p
ile,
incl
udin
g re
mov
al -
Type
I (L
=12m
)m
7262
-10
10,6
43,0
6276
6,30
0,46
465
9,86
9,84
4-1
06,4
30,6
20 -
Type
II (L
=8m
)m
336
333
-37,
307,
628
2,45
5,36
3,00
82,
433,
440,
124
-21,
922,
884
2.2
Tem
pora
ry c
offe
ring
by s
and
bag,
incl
udin
g re
mov
alm
104
52-5
296
4,83
710
0,34
3,04
850
,171
,524
-50,
171,
524
2.3
Dem
olis
hing
of e
xistin
g Sl
ope
Prot
ectio
n
in
clud
ing
haul
ing
of e
xcav
ated
mat
eria
l, L<
10
Kmcu
.m1,
489
1,68
319
481
,785
121,
777,
865
137,
644,
155
15,8
66,2
90 2
.4 T
empo
rary
cof
ferin
g by
ear
th d
am a
nd s
and
bag,
incl
udin
g re
mov
alm
3030
9,76
4,60
50
292,
938,
150
292,
938,
150
Tot
al o
f (2)
3,44
3,78
4,38
53,
574,
063,
797
130,
279,
412
3 S
LOPE
PR
OTE
CTI
ON
3.1
Con
cret
e cr
ibe
type
3.1
.1 S
truct
ural
exc
avat
ion
incl
udin
g ha
ulin
g of
exc
avat
ed m
ater
ial,
L <
10 K
mcu
.m50
324
5-2
5841
,986
21,1
18,9
5810
,286
,570
-10,
832,
388
3.1
.2 B
ackf
ill fro
m b
orro
w p
itcu
.m50
324
5-2
5810
3,15
151
,884
,953
25,2
71,9
95-2
6,61
2,95
8 3
.1.3
Fur
nish
ing
& dr
iving
Woo
den
pile
, ø 1
50 m
/m, L
= 3
.0m
nos
310
-31
61,9
301,
919,
830
0-1
,919
,830
3.1
.4 C
oncr
ete
clas
s B
cu.m
7114
-57
947,
257
67,2
55,2
4713
,261
,598
-53,
993,
649
3.1
.5 C
oncr
ete
clas
s C
1cu
.m4
2-2
905,
941
3,62
3,76
41,
811,
882
-1,8
11,8
82 3
.1.6
Con
cret
e cl
ass
C2
cu.m
3011
-19
905,
941
27,1
78,2
309,
965,
351
-17,
212,
879
3.1
.7 L
ean
conc
rete
cu.m
40
-481
7,60
83,
270,
432
0-3
,270
,432
3.1
.8 R
einf
orce
men
t ste
el b
arkg
5,04
21,
331
-3,7
1115
,022
75,7
40,9
2419
,994
,282
-55,
746,
642
3.1
.9 F
orm
wor
ksq
.m30
289
-213
301,
994
91,2
02,1
8826
,877
,466
-64,
324,
722
3.1
.10
Ela
stic
fille
r, t =
10
m/m
sq.m
8.0
5.0
-3.0
177,
941
1,42
3,52
888
9,70
5-5
33,8
23 3
.1.1
1 A
spha
lt se
alin
gcu
.m0.
100.
02-0
.08
5,13
7,50
051
3,75
010
2,75
0-4
11,0
00 3
.1.1
2 G
rave
l bac
kfill
cu.m
6021
-39
156,
593
9,39
5,58
03,
288,
453
-6,1
07,1
27 3
.1.1
3 C
obbl
e st
one,
dia
. 150
m/m
- 20
0 m
/m
in
clud
ing
fillin
g co
ncre
te c
lass
C2
cu.m
5920
-39
898,
525
53,0
12,9
7517
,970
,500
-35,
042,
475
3.1
.14
Wee
p ho
le ø
50
m/m
, L =
1.1
1 m
nos
320
-32
80,1
182,
563,
776
0-2
,563
,776
Sub
-tota
l of (
3.1)
410,
104,
135
129,
720,
552
-280
,383
,583
3.2
Wet
mas
onry
type
3
.2.1
Stru
ctur
al e
xcav
atio
n in
clud
ing
haul
ing
of
exc
avat
ed m
ater
ial,
L <
10 K
mcu
.m6,
164
5,88
8-2
7641
,986
258,
801,
704
247,
213,
568
-11,
588,
136
3.2
.2 B
ackf
ill fro
m b
orro
w p
itcu
.m6,
164
6,82
666
210
3,15
163
5,82
2,76
470
4,10
8,72
668
,285
,962
3.2
.3 F
urni
shin
g &
drivi
ng w
oode
n pi
le ø
150
m/m
, L =
3.0
mno
s29
724
1-5
661
,930
18,3
93,2
1014
,925
,130
-3,4
68,0
80
Amou
nt
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 56 Chapter 6
Tabl
e 6.
2
Bre
akdo
wn
of P
rice
d B
ill o
f Qua
ntiti
es (2
/3)
Qua
ntity
Item
No.
Des
crip
tion
Uni
tO
rigin
alAm
endm
ent
No.2
+/-
Unit
Pric
eO
rigin
alAm
endm
ent
No.2
+/-
(R
p.)
(Rp.
)(R
p.)
(Rp.
) 3
.2.4
Con
cret
e cl
ass
Bcu
.m16
315
9-4
947,
257
154,
402,
891
150,
613,
863
-3,7
89,0
28 3
.2.5
Con
cret
e cl
ass
C1
cu.m
6471
790
5,94
157
,980
,224
64,3
21,8
116,
341,
587
3.2
.6 C
oncr
ete
clas
s C
2cu
.m36
137
110
905,
941
327,
044,
701
336,
104,
111
9,05
9,41
0 3
.2.7
Lea
n co
ncre
tecu
.m39
040
919
817,
608
318,
867,
120
334,
401,
672
15,5
34,5
52 3
.2.8
Rei
nfor
cem
ent s
teel
bar
kg14
,838
15,5
8574
715
,022
222,
896,
436
234,
117,
870
11,2
21,4
34 3
.2.9
For
m w
ork
sq.m
1,52
11,
244
-277
301,
994
459,
332,
874
375,
680,
536
-83,
652,
338
3.2
.10
Ela
stic
fille
r, t =
10
m/m
sq.m
206.
014
1.5
-64.
517
7,94
136
,655
,846
25,1
78,6
52-1
1,47
7,19
4 3
.2.1
1 A
spha
lt se
alin
gcu
.m1.
501.
17-0
.33
5,13
7,50
07,
706,
250
6,01
0,87
5-1
,695
,375
3.2
.12
Wet
Mas
onry
cu
.m71
873
315
669,
907
480,
993,
226
491,
041,
831
10,0
48,6
05 3
.2.1
3 W
eep
hole
ø 5
0 m
/m, L
= 1
.11
mno
s38
837
0-1
880
,118
31,0
85,7
8429
,643
,660
-1,4
42,1
24 3
.2.1
4 G
eote
xtile
sq.m
2,53
92,
039
-500
29,6
2275
,210
,258
60,3
99,2
58-1
4,81
1,00
0 3
.2.1
5 R
ipra
p of
cob
ble
ston
e (2
00 -
500
mm
)cu
.m1,
640
1,47
2-1
6844
5,55
573
0,71
0,20
065
5,85
6,96
0-7
4,85
3,24
0 3
.2.1
6 F
urni
shin
g &
driv
ing
stee
l she
et p
ile -
Furn
ishi
ngm
016
161,
178,
640
018
,858
,240
18,8
58,2
40 -
Driv
ing
m0
1616
67,6
590
1,08
2,54
41,
082,
544
S
ub-to
tal o
f (3.
2)3,
815,
903,
488
3,74
9,55
9,30
7-6
6,34
4,18
1 T
otal
of (
3)4,
226,
007,
623
3,87
9,27
9,85
9-3
46,7
27,7
64 4
SLU
ICEW
AY 4
.1 S
truct
ural
exc
avat
ion
incl
udin
g ha
ulin
g of
exc
avat
ed m
ater
ial,
L <
10 K
mcu
.m76
66-1
041
,986
3,19
0,93
62,
771,
076
-419
,860
4.2
Bac
kfill
from
bor
row
pit
cu.m
7666
-10
103,
151
7,83
9,47
66,
807,
966
-1,0
31,5
10 4
.3 F
urni
shin
g &
driv
ing
woo
den
pile
ø 1
50 m
/m, L
= 4
.0 m
nos
6969
082
,573
5,69
7,53
75,
697,
537
0 4
.4 F
urni
shin
g &
driv
ing
stee
l she
et p
ile (Y
SP II,
L =
2.0
m)
-
Furn
ishi
ngm
3838
01,
178,
640
44,7
88,3
2044
,788
,320
0 -
Driv
ing
m38
380
67,6
592,
571,
042
2,57
1,04
20
4.5
Con
cret
e cl
ass
Bcu
.m86
77-9
947,
257
81,4
64,1
0272
,938
,789
-8,5
25,3
13 4
.6 L
ater
sta
ge c
oncr
ete,
cla
ss B
cu.m
21
-194
7,25
71,
894,
514
947,
257
-947
,257
4.7
Lea
n co
ncre
tecu
.m15
9-6
817,
608
12,2
64,1
207,
358,
472
-4,9
05,6
48 4
.8 R
einf
orce
men
t ste
el b
arkg
8,98
98,
004
-985
15,0
2213
5,03
2,75
812
0,23
6,08
8-1
4,79
6,67
0 4
.9 F
orm
wor
ksq
.m30
724
3-6
430
1,99
492
,712
,158
73,3
84,5
42-1
9,32
7,61
6 4
.10
Ela
stic
fille
r, t =
10
m/m
sq.m
6.0
0.0
-6.0
177,
941
1,06
7,64
60
-1,0
67,6
46 4
.11
Wat
er s
top
w =
300
m/m
, t =
10
m/m
m15
.010
.3-4
.723
9,42
03,
591,
300
2,46
6,02
6-1
,125
,274
4.1
2 W
et m
ason
ry
cu.m
6277
1566
9,90
741
,534
,234
51,5
82,8
3910
,048
,605
4.1
3 G
rave
l bac
kfill
cu.m
458
314
-144
156,
593
71,7
19,5
9449
,170
,202
-22,
549,
392
4.1
4 W
eep
hole
ø 5
0m/m
, L =
0.6
0mno
s5
0-5
80,1
1840
0,59
00
-400
,590
4.1
5 H
and
rail,
SG
P 50
m
43
-145
0,00
01,
800,
000
1,35
0,00
0-4
50,0
00 4
.16
Ste
el la
dder
ø 1
9kg
3715
-22
44,6
001,
650,
200
669,
000
-981
,200
4.1
7 S
lide
gate
, 2.5
m x
2.0
mno
s1
10
100,
634,
600
100,
634,
600
100,
634,
600
0 4
.18
Ser
vice
and
Rep
airin
g Sl
ide
Gat
e W
ork
set
22
68,2
50,0
000
136,
500,
000
136,
500,
000
4.1
9 F
lap
Gat
e, d
ia. 1
,100
m/m
set
11
23,3
60,0
000
23,3
60,0
0023
,360
,000
Tot
al o
f (4)
609,
853,
127
703,
233,
756
93,3
80,6
29
Amou
nt
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 57 Chapter 6
Tabl
e 6.
2
Bre
akdo
wn
of P
rice
d B
ill o
f Qua
ntiti
es (3
/3)
Qua
ntity
Item
No.
Des
crip
tion
Unit
Orig
inal
Amen
dmen
tNo
.2+/
-Un
it Pr
ice
Orig
inal
Amen
dmen
tNo
.2+/
-
(R
p.)
(Rp.
)(R
p.)
(Rp.
) 5
PAR
AK K
OPI
BR
IDG
E 5
.1 R
e-er
ectio
n of
PC
Gird
erL/
S1
10
114,
747,
084
114,
747,
084
114,
747,
084
0 S
ub-to
tal o
f (5.
1)11
4,74
7,08
411
4,74
7,08
40
5.2
Stru
ctur
e W
orks
5.2
.1 C
oncr
ete
clas
s B
cu.m
22
094
7,25
71,
894,
514
1,89
4,51
40
5.2
.2 F
orm
wor
ksq
.m8
80
301,
994
2,41
5,95
22,
415,
952
0 5
.2.3
Rei
nfor
cem
ent s
teel
bar
D13
-D25
(SD
345)
kg27
452
024
637
,150
10,1
79,1
0019
,318
,000
9,13
8,90
0 5
.2.4
Rei
nfor
cem
ent s
teel
bar
D29
-D51
(SD
345)
kg22
60
-226
37,1
508,
395,
900
0-8
,395
,900
5.2
.5 S
teel
Bra
cket
,Pla
te P
L,SS
400
kg1,
216
1,10
4-1
1262
,601
76,1
22,8
1669
,111
,504
-7,0
11,3
12 5
.2.6
Ste
el B
rack
et,D
B,NT
,WS
kg22
412
4-1
0054
,000
12,0
96,0
006,
696,
000
-5,4
00,0
00 5
.2.7
Anc
hor D
rillin
g Ho
le Æ
45,L
=0.6
25 m
m
200
-20
1,36
9,63
627
,392
,720
0-2
7,39
2,72
0 5
.2.8
Anc
hor D
rillin
g Ho
le Æ
39,L
=0.4
45 m
m17
0-1
71,
097,
000
18,6
49,0
000
-18,
649,
000
5.2
.9 A
ncho
r Dril
ling
Hole
Æ32
,L=0
.640
mm
2051
3195
6,00
019
,120
,000
48,7
56,0
0029
,636
,000
5.2
.10
Wel
d (F
ilet W
eld
7 m
m)
m39
5415
200,
000
7,80
0,00
010
,800
,000
3,00
0,00
0 5
.2.1
1 E
xpan
sion
Rub
ber,4
00x1
50x5
0(Po
lycho
loro
pren
)sh
eet
22
01,
000,
000
2,00
0,00
02,
000,
000
0 5
.2.1
2 E
xpan
sion
Rub
ber,7
00x1
50x5
0(Po
lycho
loro
pren
)sh
eet
22
01,
500,
000
3,00
0,00
03,
000,
000
0 5
.2.1
3 S
hoe,
Rub
ber B
earin
g Pa
d 40
0x40
0x30
pcs
22
01,
200,
000
2,40
0,00
02,
400,
000
0 5
.2.1
4 S
tapl
ing
(13x
22x2
00 c
m)
cu.m
22
090
0,00
01,
800,
000
1,80
0,00
00
5.2
.15
Chi
ppin
g co
ncre
tesq
.m9
8-1
130,
000
1,17
0,00
01,
040,
000
-130
,000
5.2
.16
Sup
port
L/S
11
035
0,51
035
0,51
035
0,51
00
5.2
.17
Sca
ffold
wor
kL/
S1
10
2,50
0,00
02,
500,
000
2,50
0,00
00
Sub
-tota
l of (
5.2)
197,
286,
512
172,
082,
480
-25,
204,
032
Tot
al o
f (5)
312,
033,
596
286,
829,
564
-25,
204,
032
6IN
SPEC
TIO
N R
OAD
6.1
Em
bank
men
t fro
m b
orro
w p
itcu
.m2,
796
289
-2,5
0710
3,15
128
8,41
0,19
629
,810
,639
-258
,599
,557
6.2
Sub
grad
e sq
.m1,
398
2,19
179
328
,757
40,2
02,2
8663
,006
,587
22,8
04,3
01 6
.3 G
rave
l pav
emen
t, t =
260
m/m
cu.m
365
0-3
6522
4,97
782
,116
,605
0-8
2,11
6,60
5 6
.4 A
spha
lt w
earin
g su
rface
, t =
5 c
msq
.m1,
398
1,61
521
711
5,00
016
0,77
0,00
018
5,72
5,00
024
,955
,000
6.5
Sod
ding
sq.m
2,55
11,
287
-1,2
6419
,140
48,8
26,1
4024
,633
,180
-24,
192,
960
6.6
Bas
e C
oars
e, t
= 26
0 m
/mcu
.m54
254
239
6,16
20
214,
719,
804
214,
719,
804
6.7
Asp
halt
wea
ring
surfa
ce, t
= 5
cm
(for
acc
ess
road
)sq
.m57
357
314
7,91
30
84,7
54,1
4984
,754
,149
Tot
al o
f (6)
620,
325,
227
602,
649,
359
-17,
675,
868
Tot
al o
f (1)
- (6
)9,
269,
808,
958
9,10
3,86
1,33
5-1
65,9
47,6
23
Amou
nt
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 58 Chapter 6
Tabl
e 6.
3
Bre
akdo
wn
of P
rice
d D
ayw
ork
Qua
ntity
Item
No.
Des
crip
tion
Unit
Orig
inal
Amen
dmen
tNo
.2+/
-Un
it Pr
ice
Orig
inal
Amen
dmen
tNo
.2+/
-
(R
p.)
(Rp.
)(R
p.)
(Rp.
) 1
Lab
our
1.1
For
eman
hrs
600
457
-143
9,75
05,
850,
000
4,45
5,75
0-1
,394
,250
1.2
Ski
lled
Labo
r hr
s6,
400
407
-5,9
938,
250
52,8
00,0
003,
357,
750
-49,
442,
250
1.3
Com
mon
labo
rhr
s80
02,
086
1,28
66,
750
5,40
0,00
014
,080
,500
8,68
0,50
0 1
.4 M
ason
hrs
2,00
031
2-1
,688
8,25
016
,500
,000
2,57
4,00
0-1
3,92
6,00
0 1
.5 C
oncr
ete
wor
ker
hrs
2,80
01,
096
-1,7
046,
750
18,9
00,0
007,
398,
000
-11,
502,
000
Tot
al o
f (1)
99,4
50,0
0031
,866
,000
-67,
584,
000
2 M
ater
ials
2.1
San
d ba
g in
clud
ing
fillin
g sa
ndpc
s25
00
-250
9,50
02,
375,
000
0-2
,375
,000
2.2
Gra
vel
cu.m
6046
-14
208,
000
12,4
80,0
009,
568,
000
-2,9
12,0
00 2
.3 S
and
cu.m
160
71-8
916
2,50
026
,000
,000
11,5
37,5
00-1
4,46
2,50
0 2
.4 C
emen
t (50
kg)
bag
1,40
062
6-7
7468
,860
96,4
04,0
0043
,106
,360
-53,
297,
640
2.5
Sto
ne m
ason
rycu
.m22
093
-127
195,
000
42,9
00,0
0018
,135
,000
-24,
765,
000
2.6
Cob
ble
ston
e (2
00 -
500
mm
)cu
.m20
00
-200
445,
555
89,1
11,0
000
-89,
111,
000
2.7
Soi
l fro
m b
orro
w p
itcu
.m1,
000
0-1
,000
62,0
0062
,000
,000
0-6
2,00
0,00
0 T
otal
of (
2)33
1,27
0,00
082
,346
,860
-248
,923
,140
3 C
onst
ruct
iona
l Pla
nt 3
.1 G
iant
bre
aker
hrs
185
-13
295,
000
5,31
0,00
01,
475,
000
-3,8
35,0
00 3
.2 B
ackh
oehr
s90
18-7
244
4,00
039
,960
,000
7,99
2,00
0-3
1,96
8,00
0 3
.3 C
oncr
ete
mixe
r 0.3
cu.
mhr
s42
070
-350
13,4
005,
628,
000
938,
000
-4,6
90,0
00 3
.4 C
oncr
ete
vibra
tor
hrs
420
11-4
098,
042
3,37
7,64
088
,462
-3,2
89,1
78 S
u-to
tal o
f (3)
54,2
75,6
4010
,493
,462
-43,
782,
178
Tot
al o
f (1)
- (3
)48
4,99
5,64
012
4,70
6,32
2-3
60,2
89,3
18
Amou
nt
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 59 Chapter 6
Table 6.4 Breakdown of Priced Bill of Quantities for Each Site (1/8)
Table 6.4 Breakdown of Priced Bill of Quantities for Each Site (2/8)
ITEM DESCRIPTION Unit Original Amendment +/- Unit Price Original Amendment +/-NO. (Rp.) (Rp.) (Rp.) (Rp.)
1 GENERAL ITEMS 1.1 Progress photo and Survey works L/S 1 1 0 12,500,000 12,500,000 12,500,000 0 1.2 Mobilization and Demobilization L/S 1 1 0 45,305,000 45,305,000 45,305,000 0
Total of (1) 57,805,000 57,805,000 0
Quantity Amount
ITEM DESCRIPTION Unit Original Amendment +/- Unit Price Original Amendment +/-NO. (Rp.) (Rp.) (Rp.) (Rp.)
A. BK-R1 (Purus Outlet) 2 PREPARATORY WORKS 2.1 Temporary coffering by steel sheet pile, including removal
- Type I (L=12m) : m 40 30 -10 10,643,062 425,722,480 319,291,860 -106,430,620 2.2 Temporary coffering by sand bag, including removal m 60 0 -60 964,837 57,890,220 0 -57,890,220
- Purus Sluceway m 20 0 -20 964,837 19,296,740 0 -19,296,740- around Purus m 40 0 -40 964,837 38,593,480 0 -38,593,480
2.3 Demolishing of existing Slope Protection including hauling of excavated material, L< 10 Km cu.m 160 48 -112 81,785 13,085,600 3,925,680 -9,159,920 2.4 Temporary coffering by earth dam and sand bag,
including removal. m 30 30 9,764,605 0 292,938,150 292,938,150 Total of (2) 496,698,300 616,155,690 119,457,390
3 SLOPE PROTECTION 3.1 Concrete cribe type 3.1.1 Structural excavation including hauling of
excavated material, L < 10 Km cu.m 503 245 -258 41,986 21,118,958 10,286,570 -10,832,388 3.1.2 Backfill from borrow pit cu.m 503 245 -258 103,151 51,884,953 25,271,995 -26,612,958 3.1.3 Furnishing & driving Wooden pile, ø 150 m/m, L = 3.0m nos 31 0 -31 61,930 1,919,830 0 -1,919,830 3.1.4 Concrete class B cu.m 71 14 -57 947,257 67,255,247 13,261,598 -53,993,649 3.1.5 Concrete class C1 cu.m 4 2 -2 905,941 3,623,764 1,811,882 -1,811,882 3.1.6 Concrete class C2 cu.m 30 11 -19 905,941 27,178,230 9,965,351 -17,212,879 3.1.7 Lean concrete cu.m 4 0 -4 817,608 3,270,432 0 -3,270,432 3.1.8 Reinforcement steel bar kg 5042 1331 -3711 15,022 75,740,924 19,994,282 -55,746,642 3.1.9 Form work sq.m 302 89 -213 301,994 91,202,188 26,877,466 -64,324,722 3.1.10 Elastic filler, t = 10 m/m sq.m 8.0 5.0 -3.0 177,941 1,423,528 889,705 -533,823 3.1.11 Asphalt sealing cu.m 0.10 0.02 -0.08 5,137,500 513,750 102,750 -411,000 3.1.12 Gravel backfill cu.m 60 21 -39 156,593 9,395,580 3,288,453 -6,107,127 3.1.13 Cobble stone, dia. 150 m/m - 200 m/m
including filling concrete class C2 cu.m 59 20 -39 898,525 53,012,975 17,970,500 -35,042,475 3.1.14 Weep hole ø 50 m/m, L = 1.11 m nos 32 0 -32 80,118 2,563,776 0 -2,563,776 3.1.15 Furnishing & driving steel sheet pile
- Furnishing m 16 16 1,178,640 0 18,858,240 18,858,240 - Driving m 16 16 67,659 0 1,082,544 1,082,544 Total of (3) 410,104,135 149,661,336 -260,442,799
4 SLUICEWAY 4.5 Concrete class B cu.m 9 2 -7 947,257 8,525,313 1,894,514 -6,630,799 4.7 Lean concrete cu.m 2 0 -2 817,608 1,635,216 0 -1,635,216 4.8 Reinforcement steel bar kg 652 144 -508 15,022 9,794,344 2,163,168 -7,631,176 4.9 Form work sq.m 52 10 -42 301,994 15,703,688 3,019,940 -12,683,748 4.10 Elastic filler, t = 10 m/m sq.m 2.0 0.0 -2.0 177,941 355,882 0 -355,882 4.11 Water stop w =300 m/m, t = 10 m/m m 4.0 0.0 -4.0 239,420 957,680 0 -957,680 4.16 Steel ladder ø 19 kg 18 0 -18 44,600 802,800 0 -802,800 4.18 Service and Repairing Slide Gate Work set 2 2 68,250,000 0 136,500,000 136,500,000
Total of (4) 37,774,923 143,577,622 105,802,699 6 INSPECTION ROAD 6.1 Embankment from borrow pit cu.m 300 50 -250 103,151 30,945,300 5,157,550 -25,787,750 6.2 Subgrade sq.m 150 277 127 28,757 4,313,550 7,965,689 3,652,139 6.3 Gravel pavement, t = 260 m/m cu.m 39 0 -39 224,977 8,774,103 0 -8,774,103 6.4 Asphalt wearing surface, t = 5 cm sq.m 150 277 127 115,000 17,250,000 31,855,000 14,605,000 6.5 Sodding sq.m 274 0 -274 19,140 5,244,360 0 -5,244,360 6.6 Base Coarse class A, t = 260 m/ m cu.m 45 45 396,162 0 17,827,290 17,827,290
Total of (6) 66,527,313 62,805,529 -3,721,784TOTAL OF A. (BK-R1, Purus) 1,011,104,671 972,200,177 -38,904,494
Quantity Amount
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 60 Chapter 6
Table 6.4 Breakdown of Priced Bill of Quantities for Each Site (3/8)
Table 6.4 Breakdown of Priced Bill of Quantities for Each Site (4/8)
ITEM DESCRIPTION Unit Original Amendment +/- Unit Price Original Amendment +/-NO. (Rp.) (Rp.) (Rp.) (Rp.)
B. BK-R3 (Parak Kopi Footpath Bridge) 5 PARAK KOPI BRIDGE 5.1 Re-erection of PC Girder L/S 1 1 0 114,747,084 114,747,084 114,747,084 0
Sub-total of (5.1) 114,747,084 114,747,084 0 5.2 Structure Works 5.2.1 Concrete class B cu.m 2 2 0 947,257 1,894,514 1,894,514 0 5.2.2 Form work sq.m 8 8 0 301,994 2,415,952 2,415,952 0 5.2.3 Reinforcement steel bar D13-D25 (SD345) kg 274 520 246 37,150 10,179,100 19,318,000 9,138,900 5.2.4 Reinforcement steel bar D29-D51 (SD345) kg 226 0 -226 37,150 8,395,900 0 -8,395,900 5.2.5 Steel Bracket,Plate PL,SS400 kg 1216 1104 -112 62,601 76,122,816 69,111,504 -7,011,312 5.2.6 Steel Bracket,DB,NT,WS kg 224 124 -100 54,000 12,096,000 6,696,000 -5,400,000 5.2.7 Anchor Drilling Hole Æ45,L=0.625 m m 20 0 -20 1,369,636 27,392,720 0 -27,392,720 5.2.8 Anchor Drilling Hole Æ39,L=0.445 m m 17 0 -17 1,097,000 18,649,000 0 -18,649,000 5.2.9 Anchor Drilling Hole Æ32,L=0.640 m m 20 51 31 956,000 19,120,000 48,756,000 29,636,000 5.2.10 Weld (Filet Weld 7 mm) m 39 54 15 200,000 7,800,000 10,800,000 3,000,000 5.2.11 Expansion Rubber,400x150x50(Polycholoropren) sheet 2 2 0 1,000,000 2,000,000 2,000,000 0 5.2.12 Expansion Rubber,700x150x50(Polycholoropren) sheet 2 2 0 1,500,000 3,000,000 3,000,000 0 5.2.13 Shoe, Rubber Bearing Pad 400x400x30 pcs 2 2 0 1,200,000 2,400,000 2,400,000 0 5.2.14 Stapling (13x22x200 cm) cu.m 2 2 0 900,000 1,800,000 1,800,000 0 5.2.15 Chipping concrete sq.m 9 8 -1 130,000 1,170,000 1,040,000 -130,000 5.2.16 Support L/S 1 1 0 350,510 350,510 350,510 0 5.2.17 Scaffold work L/S 1 1 0 2,500,000 2,500,000 2,500,000 0
Sub-total of (5.2) 197,286,512 172,082,480 -25,204,032 Total of (5) 312,033,596 286,829,564 -25,204,032TOTAL OF B. (Parak Kopi Footpath Bridge) 312,033,596 286,829,564 -25,204,032
Quantity Amount
ITEM DESCRIPTION Unit Original Amendment +/- Unit Price Original Amendment +/-NO. (Rp.) (Rp.) (Rp.) (Rp.)
C. KR-R1 (Near Confluence of Balimbing, Left) 2 PREPARATORY WORKS 2.1 Temporary coffering by steel sheet pile, including removal
- Type I (L=12m) m 32 32 0 10,643,062 340,577,984 340,577,984 0 2.2 Temporary coffering by sand bag, including removal m 10 10 0 964,837 9,648,370 9,648,370 0 2.3 Demolishing of existing Slope Protection including hauling of excavated material, L< 10 Km cu.m 187 188 1 81,785 15,293,795 15,375,580 81,785
Total of (2) 365,520,149 365,601,934 81,785 3 SLOPE PROTECTION 3.2 Wet masonry type 3.2.1 Structural excavation including hauling of excavated material, L < 10 Km cu.m 520 545 25 41,986 21,832,720 22,882,370 1,049,650 3.2.2 Backfill from borrow pit cu.m 520 545 25 103,151 53,638,520 56,217,295 2,578,775 3.2.3 Furnishing & driving wooden pile ø 150 m/m, L = 3.0 m nos 26 23 -3 61,930 1,610,180 1,424,390 -185,790 3.2.4 Concrete class B cu.m 14 14 0 947,257 13,261,598 13,261,598 0 3.2.5 Concrete class C1 cu.m 6 18 12 905,941 5,435,646 16,306,938 10,871,292 3.2.6 Concrete class C2 cu.m 32 28 -4 905,941 28,990,112 25,366,348 -3,623,764 3.2.7 Lean concrete cu.m 34 32 -2 817,608 27,798,672 26,163,456 -1,635,216 3.2.8 Reinforcement steel bar kg 1292 1301 9 15,022 19,408,424 19,543,622 135,198 3.2.9 Form work sq.m 134 103 -31 301,994 40,467,196 31,105,382 -9,361,814 3.2.10 Elastic filler, t = 10 m/m sq.m 19.0 11.3 -7.7 177,941 3,380,879 2,010,734 -1,370,145 3.2.11 Asphalt sealing cu.m 0.20 0.10 -0.10 5,137,500 1,027,500 513,750 -513,750 3.2.12 Wet Masonry cu.m 63 56 -7 669,907 42,204,141 37,514,792 -4,689,349 3.2.13 Weep hole ø 50 m/m, L = 1.11 m nos 34 30 -4 80,118 2,724,012 2,403,540 -320,472 3.2.14 Geotextile sq.m 258 193 -65 29,622 7,642,476 5,717,046 -1,925,430 3.2.15 Riprap of cobble stone (200 - 500 mm) cu.m 137 138 1 445,555 61,041,035 61,486,590 445,555 Total of (3) 330,463,111 321,917,851 -8,545,260 4 SLUICEWAY 4.1 Structural excavation including hauling of
excavated material, L < 10 Km cu.m 76 66 -10 41,986 3,190,936 2,771,076 -419,860 4.2 Backfill from borrow pit cu.m 76 66 -10 103,151 7,839,476 6,807,966 -1,031,510 4.3 Furnishing & driving wooden pile ø 150 m/m, L = 4.0 m nos 69 69 0 82,573 5,697,537 5,697,537 0 4.4 Furnishing & driving steel sheet pile (YSP II, L = 2.0 m)
- Furnishing m 38 38 0 1,178,640 44,788,320 44,788,320 0 - Driving m 38 38 0 67,659 2,571,042 2,571,042 0
4.5 Concrete class B cu.m 77 75 -2 947,257 72,938,789 71,044,275 -1,894,514 4.6 Later stage concrete, class B cu.m 2 1 -1 947,257 1,894,514 947,257 -947,257 4.7 Lean concrete cu.m 13 9 -4 817,608 10,628,904 7,358,472 -3,270,432 4.8 Reinforcement steel bar kg 8337 7860 -477 15,022 125,238,414 118,072,920 -7,165,494 4.9 Form work sq.m 255 233 -22 301,994 77,008,470 70,364,602 -6,643,868 4.10 Elastic filler, t = 10 m/m sq.m 4.0 0.0 -4.0 177,941 711,764 0 -711,764 4.11 Water stop w =300 m/m, t = 10 m/m m 11.0 10.3 -0.7 239,420 2,633,620 2,466,026 -167,594 4.12 Wet masonry cu.m 62 77 15 669,907 41,534,234 51,582,839 10,048,605 4.13 Gravel backfill cu.m 458 314 -144 156,593 71,719,594 49,170,202 -22,549,392 4.14 Weep hole ø 50m/m, L = 0.60m nos 5 0 -5 80,118 400,590 0 -400,590 4.15 Hand rail, SGP 50 m 4 3 -1 450,000 1,800,000 1,350,000 -450,000 4.16 Steel ladder ø 19 kg 19 15 -4 44,600 847,400 669,000 -178,400 4.17 Slide gate, 2.5m x 2.0m nos 1 1 0 100,634,600 100,634,600 100,634,600 0 4.19 Flap Gate, dia. 1,100 m/m set 1 1 23,360,000 0 23,360,000 23,360,000
Total of (4) 572,078,204 559,656,134 -12,422,070 6 INSPECTION ROAD 6.1 Embankment from borrow pit cu.m 252 52 -200 103,151 25,994,052 5,363,852 -20,630,200 6.2 Subgrade sq.m 126 174 48 28,757 3,623,382 5,003,718 1,380,336 6.3 Gravel pavement, t = 260 m/m cu.m 33 0 -33 224,977 7,424,241 0 -7,424,241 6.4 Asphalt wearing surface, t = 5 cm sq.m 126 174 48 115,000 14,490,000 20,010,000 5,520,000 6.5 Sodding sq.m 230 181 -49 19,140 4,402,200 3,464,340 -937,860 6.6 Base Coarse class A, t = 260 m/ m cu.m 45 45 396,162 0 17,827,290 17,827,290
Total of (6) 55,933,875 51,669,200 -4,264,675TOTAL OF C. (near Confluence of Balimbing, Left) 1,323,995,339 1,298,845,119 -25,150,220
Quantity Amount
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 61 Chapter 6
Table 6.4 Breakdown of Priced Bill of Quantities for Each Site (5/8)
Table 6.4 Breakdown of Priced Bill of Quantities for Each Site (6/8)
ITEM DESCRIPTION Unit Original Amendment +/- Unit Price Original Amendment +/-NO. (Rp.) (Rp.) (Rp.) (Rp.)
D. KR-R2 (D/S Nanggalo Bridge, Right) 2 PREPARATORY WORKS 2.1 Temporary coffering by steel sheet pile, including removal
- Type II (L=8m) m 90 90 0 7,307,628 657,686,520 657,686,520 0 2.2 Temporary coffering by sand bag, including removal m 10 10 0 964,837 9,648,370 9,648,370 0 2.3 Demolishing of existing Slope Protection including hauling of excavated material, L< 10 Km cu.m 370 606 236 81,785 30,260,450 49,561,710 19,301,260
Total of (2) 697,595,340 716,896,600 19,301,260 3 SLOPE PROTECTION 3.2 Wet masonry type 3.2.1 Structural excavation including hauling of excavated material, L < 10 Km cu.m 1561 1641 80 41,986 65,540,146 68,899,026 3,358,880 3.2.2 Backfill from borrow pit cu.m 1561 1641 80 103,151 161,018,711 169,270,791 8,252,080 3.2.3 Furnishing & driving wooden pile ø 150 m/m, L = 3.0 m nos 69 63 -6 61,930 4,273,170 3,901,590 -371,580 3.2.4 Concrete class B cu.m 40 40 0 947,257 37,890,280 37,890,280 0 3.2.5 Concrete class C1 cu.m 16 14 -2 905,941 14,495,056 12,683,174 -1,811,882 3.2.6 Concrete class C2 cu.m 106 99 -7 905,941 96,029,746 89,688,159 -6,341,587 3.2.7 Lean concrete cu.m 114 109 -5 817,608 93,207,312 89,119,272 -4,088,040 3.2.8 Reinforcement steel bar kg 3934 4172 238 15,022 59,096,548 62,671,784 3,575,236 3.2.9 Form work sq.m 392 329 -63 301,994 118,381,648 99,356,026 -19,025,622 3.2.10 Elastic filler, t = 10 m/m sq.m 64.0 42.1 -21.9 177,941 11,388,224 7,491,316 -3,896,908 3.2.11 Asphalt sealing cu.m 0.40 0.37 -0.03 5,137,500 2,055,000 1,900,875 -154,125 3.2.12 Wet Masonry cu.m 212 193 -19 669,907 142,020,284 129,292,051 -12,728,233 3.2.13 Weep hole ø 50 m/m, L = 1.11 m nos 95 120 25 80,118 7,611,210 9,614,160 2,002,950 3.2.14 Geotextile sq.m 615 497 -118 29,622 18,217,530 14,722,134 -3,495,396 3.2.15 Riprap of cobble stone (200 - 500 mm) cu.m 361 354 -7 445,555 160,845,355 157,726,470 -3,118,885 Total of (3) 992,070,220 954,227,108 -37,843,112 6 INSPECTION ROAD 6.1 Embankment from borrow pit cu.m 600 68 -532 103,151 61,890,600 7,014,268 -54,876,332 6.2 Subgrade sq.m 300 336 36 28,757 8,627,100 9,662,352 1,035,252 6.3 Gravel pavement, t = 260 m/m cu.m 78 0 -78 224,977 17,548,206 0 -17,548,206 6.4 Asphalt wearing surface, t = 5 cm sq.m 300 336 36 115,000 34,500,000 38,640,000 4,140,000 6.5 Sodding sq.m 547 209 -338 19,140 10,469,580 4,000,260 -6,469,320 6.6 Base Coarse class A, t = 260 m/m cu.m 87 87 396,162 0 34,466,094 34,466,094
Total of (6) 133,035,486 93,782,974 -39,252,512TOTAL OF D. (D/S of Nanggalo Bridge, Right) 1,822,701,046 1,764,906,682 -57,794,364
Quantity Amount
ITEM DESCRIPTION Unit Original Amendment +/- Unit Price Original Amendment +/-NO. (Rp.) (Rp.) (Rp.) (Rp.)
E. KR-R4 (U/S Nanggalo Bridge, Left - 1) 2 PREPARATORY WORKS 2.1 Temporary coffering by steel sheet pile, including removal
- Type II (L=8m) m 88 88 0 7,307,628 643,071,264 643,071,264 0 2.2 Temporary coffering by sand bag, including removal m 8 8 0 964,837 7,718,696 7,718,696 0 2.3 Demolishing of existing Slope Protection including hauling of excavated material, L< 10 Km cu.m 299 333 34 81,785 24,453,715 27,234,405 2,780,690
Total of (2) 675,243,675 678,024,365 2,780,690 3 SLOPE PROTECTION 3.2 Wet masonry type 3.2.1 Structural excavation including hauling of excavated material, L < 10 Km cu.m 1422 1645 223 41,986 59,704,092 69,066,970 9,362,878 3.2.2 Backfill from borrow pit cu.m 1422 1645 223 103,151 146,680,722 169,683,395 23,002,673 3.2.3 Furnishing & driving wooden pile ø 150 m/m, L = 3.0 m nos 79 56 -23 61,930 4,892,470 3,468,080 -1,424,390 3.2.4 Concrete class B cu.m 39 36 -3 947,257 36,943,023 34,101,252 -2,841,771 3.2.5 Concrete class C1 cu.m 15 14 -1 905,941 13,589,115 12,683,174 -905,941 3.2.6 Concrete class C2 cu.m 86 99 13 905,941 77,910,926 89,688,159 11,777,233 3.2.7 Lean concrete cu.m 93 109 16 817,608 76,037,544 89,119,272 13,081,728 3.2.8 Reinforcement steel bar kg 3209 3527 318 15,022 48,205,598 52,982,594 4,776,996 3.2.9 Form work sq.m 353 282 -71 301,994 106,603,882 85,162,308 -21,441,574 3.2.10 Elastic filler, t = 10 m/m sq.m 43.0 30.0 -13.0 177,941 7,651,463 5,338,230 -2,313,233 3.2.11 Asphalt sealing cu.m 0.30 0.24 -0.06 5,137,500 1,541,250 1,233,000 -308,250 3.2.12 Wet Masonry cu.m 171 198 27 669,907 114,554,097 132,641,586 18,087,489 3.2.13 Weep hole ø 50 m/m, L = 1.11 m nos 92 70 -22 80,118 7,370,856 5,608,260 -1,762,596 3.2.14 Geotextile sq.m 593 479 -114 29,622 17,565,846 14,188,938 -3,376,908 3.2.15 Riprap of cobble stone (200 - 500 mm) cu.m 375 341 -34 445,555 167,083,125 151,934,255 -15,148,870 Total of (3) 886,334,009 916,899,473 30,565,464 6 INSPECTION ROAD 6.1 Embankment from borrow pit cu.m 582 44 -538 103,151 60,033,882 4,538,644 -55,495,238 6.2 Subgrade sq.m 291 289 -2 28,757 8,368,287 8,310,773 -57,514 6.3 Gravel pavement, t = 260 m/m cu.m 76 0 -76 224,977 17,098,252 0 -17,098,252 6.4 Asphalt wearing surface, t = 5 cm sq.m 291 289 -2 115,000 33,465,000 33,235,000 -230,000 6.5 Sodding sq.m 531 291 -240 19,140 10,163,340 5,569,740 -4,593,600 6.6 Base Coarse class A, t = 260 m/m cu.m 75 75 396,162 0 29,712,150 29,712,150
Total of (6) 129,128,761 81,366,307 -47,762,454TOTAL OF E (U/S Nanggalo Bridge, Left - 1) 1,690,706,445 1,676,290,145 -14,416,300
Quantity Amount
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 62 Chapter 6
Table 6.4 Breakdown of Priced Bill of Quantities for Each Site (7/8)
Table 6.4 Breakdown of Priced Bill of Quantities for Each Site (8/8)
ITEM DESCRIPTION Unit Original Amendment +/- Unit Price Original Amendment +/-NO. (Rp.) (Rp.) (Rp.) (Rp.)
F. KR-R5 (U/S Nanggalo Bridge, Left - 2) 2 PREPARATORY WORKS 2.1 Temporary coffering by steel sheet pile, including removal
- Type II (L=8m) m 16 13 -3 7,307,628 116,922,048 94,999,164 -21,922,884 2.2 Temporary coffering by sand bag, including removal m 8 16 8 964,837 7,718,696 15,437,392 7,718,696 2.3 Demolishing of existing Slope Protection including hauling of excavated material, L< 10 Km cu.m 53 58 5 81,785 4,334,605 4,743,530 408,925
Total of (2) 128,975,349 115,180,086 -13,795,263 3 SLOPE PROTECTION 3.2 Wet masonry type 3.2.1 Structural excavation including hauling of excavated material, L < 10 Km cu.m 251 287 36 41,986 10,538,486 12,049,982 1,511,496 3.2.2 Backfill from borrow pit cu.m 251 235 -16 103,151 25,890,901 24,240,485 -1,650,416 3.2.3 Furnishing & driving wooden pile ø 150 m/m, L = 3.0 m nos 16 0 -16 61,930 990,880 0 -990,880 3.2.4 Concrete class B cu.m 7 10 3 947,257 6,630,799 9,472,570 2,841,771 3.2.5 Concrete class C1 cu.m 3 2 -1 905,941 2,717,823 1,811,882 -905,941 3.2.6 Concrete class C2 cu.m 16 12 -4 905,941 14,495,056 10,871,292 -3,623,764 3.2.7 Lean concrete cu.m 17 12 -5 817,608 13,899,336 9,811,296 -4,088,040 3.2.8 Reinforcement steel bar kg 566 473 -93 15,022 8,502,452 7,105,406 -1,397,046 3.2.9 Form work sq.m 63 54 -9 301,994 19,025,622 16,307,676 -2,717,946 3.2.10 Elastic filler, t = 10 m/m sq.m 8.0 10.0 2.0 177,941 1,423,528 1,779,410 355,882 3.2.11 Asphalt sealing cu.m 0.10 0.09 -0.01 5,137,500 513,750 462,375 -51,375 3.2.12 Wet Masonry cu.m 31 23 -8 669,907 20,767,117 15,407,861 -5,359,256 3.2.13 Weep hole ø 50 m/m, L = 1.11 m nos 17 8 -9 80,118 1,362,006 640,944 -721,062 3.2.14 Geotextile sq.m 105 86 -19 29,622 3,110,310 2,547,492 -562,818 3.2.15 Riprap of cobble stone (200 - 500 mm) cu.m 67 61 -6 445,555 29,852,185 27,178,855 -2,673,330 Total of (3) 159,720,251 139,687,526 -20,032,725 6 INSPECTION ROAD 6.1 Embankment from borrow pit cu.m 150 21 -129 103,151 15,472,650 2,166,171 -13,306,479 6.2 Subgrade sq.m 75 638 563 28,757 2,156,775 18,346,966 16,190,191 6.3 Gravel pavement, t = 260 m/m cu.m 20 0 -20 224,977 4,499,540 0 -4,499,540 6.4 Asphalt wearing surface, t = 5 cm sq.m 75 65 -10 115,000 8,625,000 7,475,000 -1,150,000 6.5 Sodding sq.m 137 181 44 19,140 2,622,180 3,464,340 842,160 6.6 Base Coarse class A, t = 260 m/m cu.m 166 166 396,162 0 65,762,892 65,762,892 6.7 Asphalt wearing surface, t = 5 cm (new) sq.m 573 573 147,913 0 84,754,149 84,754,149
Total of (6) 33,376,145 181,969,518 148,593,373TOTAL OF F (U/S Nanggalo Bridge, Left - 2) 322,071,745 436,837,130 114,765,385
Quantity Amount
ITEM DESCRIPTION Unit Original Amendment +/- Unit Price Original Amendment +/-NO. (Rp.) (Rp.) (Rp.) (Rp.)
G. BL-R1 (D/S Tunggul Titam Bridge, Right) 2 PREPARATORY WORKS 2.1 Temporary coffering by steel sheet pile, including removal
- Type II (L=8m) m 142 142 0 7,307,628 1,037,683,176 1,037,683,176 0 2.2 Temporary coffering by sand bag, including removal m 8 8 0 964,837 7,718,696 7,718,696 0 2.3 Demolishing of existing Slope Protection including hauling of excavated material, L< 10 Km cu.m 420 450 30 81,785 34,349,700 36,803,250 2,453,550
Total of (2) 1,079,751,572 1,082,205,122 2,453,550 3 SLOPE PROTECTION 3.2 Wet masonry type 3.2.1 Structural excavation including hauling of excavated material, L < 10 Km cu.m 2,410 1,770 -640 41,986 101,186,260 74,315,220 -26,871,040 3.2.2 Backfill from borrow pit cu.m 2,410 2,760 350 103,151 248,593,910 284,696,760 36,102,850 3.2.3 Furnishing & driving wooden pile ø 150 m/m, L = 3.0 m nos 107 99 -8 61,930 6,626,510 6,131,070 -495,440 3.2.4 Concrete class B cu.m 63 59 -4 947,257 59,677,191 55,888,163 -3,789,028 3.2.5 Concrete class C1 cu.m 24 23 -1 905,941 21,742,584 20,836,643 -905,941 3.2.6 Concrete class C2 cu.m 121 133 12 905,941 109,618,861 120,490,153 10,871,292 3.2.7 Lean concrete cu.m 132 147 15 817,608 107,924,256 120,188,376 12,264,120 3.2.8 Reinforcement steel bar kg 5,837 6,112 275 15,022 87,683,414 91,814,464 4,131,050 3.2.9 Form work sq.m 579 476 -103 301,994 174,854,526 143,749,144 -31,105,382 3.2.10 Elastic filler, t = 10 m/m sq.m 72.0 48.1 -23.9 177,941 12,811,752 8,558,962 -4,252,790 3.2.11 Asphalt sealing cu.m 0.50 0.37 -0.13 5,137,500 2,568,750 1,900,875 -667,875 3.2.12 Wet Masonry cu.m 241 263 22 669,907 161,447,587 176,185,541 14,737,954 3.2.13 Weep hole ø 50 m/m, L = 1.11 m nos 150 142 -8 80,118 12,017,700 11,376,756 -640,944 3.2.14 Geotextile sq.m 968 784 -184 29,622 28,674,096 23,223,648 -5,450,448 3.2.15 Riprap of cobble stone (200 - 500 mm) cu.m 700 578 -122 445,555 311,888,500 257,530,790 -54,357,710 Total of (3) 1,447,315,897 1,396,886,565 -50,429,332 6 INSPECTION ROAD 6.1 Embankment from borrow pit cu.m 912 54 -858 103,151 94,073,712 5,570,154 -88,503,558 6.2 Subgrade sq.m 456 477 21 28,757 13,113,192 13,717,089 603,897 6.3 Gravel pavement, t = 260 m/m cu.m 119 0 -119 224,977 26,772,263 0 -26,772,263 6.4 Asphalt wearing surface, t = 5 cm sq.m 456 474 18 115,000 52,440,000 54,510,000 2,070,000 6.5 Sodding sq.m 832 425 -407 19,140 15,924,480 8,134,500 -7,789,980 6.6 Base Coarse class A, t = 260 m/m cu.m 124 124 396,162 0 49,124,088 49,124,088
Total of (6) 202,323,647 131,055,831 -71,267,816TOTAL OF G (D/S Tunggul Hitam Bridge, Right) 2,729,391,116 2,610,147,518 -119,243,598
Total of (A) - (G) 9,212,003,958 9,046,056,335 -165,947,623
Quantity Amount
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 63 Chapter 6
6.2 Disbursement
Payment of the Works was made based on the statement of performance certified by the Employer. Contract amount and payment are summarized below:
Table 6.5 Disbursement Record of the Works
Item Amount of progress from
previous request(Rp.)
Reimbursement of Advance
Payment (Rp.)
Deduction for Retention
(Rp.)
Payment Request
(Rp.) Original Contract - - - 9,754,804,598Amendment No.2 - - - 9,228,567,657Advance Payment (on 31/May/2010)
- - - 1,950,960,920
1st Progress Payment (up to 17/Oct/2010): on 18/Oct/2010
3,153,034,566 788,258,642 157,651,728 2,207,124,196
2nd Progress payment up to 12/Dec/2010): on 14/Dec/2010
2,864,392,287 716,098,072 143,219,614 2,005,074,601
3rd Progress payment (up to 12/Feb/2011): on 18/Feb/2011
3,211,140,804 446,604,206 160,557,041 2,603,979,557
Repayment of half of total amount retained: on 18/Feb/2011
230,714,191
Final Payment: on 12/Aug/2011
- - - 230,714,192
Total of Payment 9,228,567,657 1950,960,920 461,428,383 9,228,567,657 Half the total amount retained was repaid on completion of the Works and the remaining half will be repaid in August 2011 after the Defects Notice Period in accordance with the contract.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 64 Chapter 7
7. GUIDANCE OF OPERATION AND MAINTENANCE OF RIVER FACILITIES
In order to maintain the function of water resources facilities, proper operation and maintenance (O & M) of the facilities are indispensable. All of the documents and data of the rehabilitation works were transferred to the agencies concerned through members of the Project Working Group as the reference for the O & M activities. Further, repair works for minor damages of the facilities were planned and conducted with the members of the Project Working Group during the rehabilitation works by using the daywork of the construction contract, in order to guide the repair works of the O & M of the facilities. In addition to the above, the JICA Consultant Team summarized the present condition of rivers and recommendation on the O & M of the rivers as described below: 7.1 Present Condition of Rivers and River Structures
The present rivers in Padang City were improved during a period from 1990 to 2002. After the improvement, the river conditions were changed. Based on the visual inspection results, the present riverbed conditions of rivers are summarized in Figure 7.1 and the present conditions of rivers and river structures are described hereunder: (1) Arau River River channel and river structures are maintained in good condition. The river bed might be lowered at about 0.0 to 0.3 m. There are many mooring boats around river mouth. Abandoned mooring boats might be a problem on O & M. (2) Jirak River The river bed seemed to be lowered from the design elevation with about 0.5 to 1.0m in the stretches from the confluence with the Arau River to the railway bridge. Due to this riverbed degradation, the slope protection works were damaged partially. (3) Flood Relief Channel The riverbed from the river mouth to the Andalas II dropstructure is slightly lowered with about 0.0 to 0.5m. The structures in this stretch are in good condition, except the structures damaged by the earthquake around river mouth. The riverbed from Andalas II dropstructure to the Diversion weir is lowered with about 0.5 to 1.0m. The structures of this stretch are in good condition. However, minor damages can be seen in slope protection works. There are some illegal garbage dumps along the inspection road. (4) Kuranji River The riverbed of the Kuranji River is lowered in the whole stretches. The degradation of the riverbed from the design riverbed elevation is at about 0.0 to 0.5 m from river mouth to the confluence of the Balimbing River, at about 0.5 to 1.0 m from the confluence to the PDAM Weir, and at more than 1.0m in the upper reaches of the PDAM Weir. Local scouring happens at the outer bend of the meandering. Due to the remarkable riverbed degradation, the facilities of the Kuranji river suffered the
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 65 Chapter 7
damages by the off Padang earthquake. Severely damaged facilities were rehabilitated the Project. However, minor damages of the facilities still remain. Although the material extraction activities was reduced compared to the past, some activities still remain in the upper reaches of the Kuranji River. In addition, there are some illegal garbage dumps along the inspection road. (5) Balimbing River The riverbed of the Balimbing River is rather stable at present. However, the river facilities suffered the damages by the earthquake. Before the improvement, the Balimbing River had many meanderings and those meanderings were corrected by the river improvement. Such correction works might affect damages by the earthquake. Severely damaged facilities were rehabilitated by the Project. However, minor damages of the facilities still remain. (6) Air Dingin River. The riverbed degradation is remarkable in the upper stretches. The rivebed from the railway bridge to the end of slope protection works is lowered with about 0.5 to 1.0 m. Upper stretches are lowered with more than 1.0m. There are few structure damages by the earthquake. However, structural damages due to the riverbed degradation can be seen along the river. (7) Drainage Channels Drainage channels in Padang City were also improved during the Padang Area Flood Control Project (I) and (II). Those channels and facilities are in good condition except sedimentation and damages by the earthquake. The dike around the Ulak Karang and Ujung Gurun and Baung collecting ponds are severely damaged by the earthquake.
Project for Post-earthquaWater Resources Ma
66
ake Rehabilitation of anagement Facilities
in Padang
Final Report
Chapter 7
Figu
re 7
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Pre
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Riv
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Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 67 Chapter 7
7.2 Recommendation on Operation and Maintenance
Based on the present condition of rivers and river structures and the experiences of this rehabilitation works, it is recommended that special attention during the inspection shall be paid to the structures shown in Figure 7.2. Background of the recommendation is described as follows:
Table 7.1 Structure to be paid Attention during Inspection (1/2) River Arau River Structure/ Condition
Structure: Diversion weir
Condition: Special attention shall be paid to the diversion weir, especially to the stilling basin. If the diversion weir is broken, the all flood discharge will flow into the Arau River.
River Jirak River Structure/ Condition
Structure: Dike/slope protection work/dropstructure between the confluence with the Arau River and railway bridge
Condition: Due to the riverbed degradation and the earthquake, the structures in this stretch have the minor damages. Among them, the dropstructure at the confluence is the trunk facility of the river. If dropstructure flush away, the other structures will be also damaged seriously.
River Flood Relief Channel Structure/ Condition
Structure: Dike/slope protection/sluice around river mouth
Condition: Due to the soil condition around river mouth, the structures have weakness of the earthquake. If there is damage after flood or earthquake, temporary works should be done by use of sand bags, cobble stones, etc.
Structure: Dike/slope protection/dropstructure around Alai dropstructure
Condition: The stilling basin of the Alai dropstructure has damage slightly. In addition, there is local scouring at the outer bend of stream.
Structure: Dike/slope protection/dropstructure from Andalas Dropstructure II to diversion weir
Condition: The riverbed degradation is remarkable in this stretch.
Project for Post-earthquake Rehabilitation of Water Resources Management Facilities
in Padang
Final Report 68 Chapter 7
Table 7.1 Structure to be paid Attention during Inspection (2/2) River Kuranji River Structure/ Condition
Structure: Dike/slope protection/sluice from river mouth to confluence of Balimbing River
Condition: Many structures have minor damages caused by the earthquake. In addition, riverbed degradation in the upstream reaches will progress to the downstream.
Structure: Dike/slope protection/weir from the confluence of the Balimbing River to PDAM weir
Condition: Riverbed degradation is remarkable in this stretch. Special attention shall be paid to the bank at the outer bend and to the downstream side of the PDAM weir.
Structure: Kalawi dropstructure
Condition: Riverbed degradation at the downstream side of the dropstructure is remarkable. If the dropstructure is washed away, the bridges at the upper reaches will be also washed out.
River Balimbing River Structure/ Condition
Structure: Dike/slope protection around Tunggul Hitam Bridge
Condition: Due to the geological condition, the structures might be affected by the earthquake. Therefore, special attention shall be paid.
River Air Dingin River Structure/ Condition
Structure: Dike/slope protection from the railway bridge to end of slope protection work
Condition: Due to the riverbed degradation, the strutures are in instable condition. In addition, the structure has minor damaged cause by the earthquake.
Structure: Pulai Dropstructure
Condition: The dropstructure has damages partly due to the riverbed degradation. Repair and installation of the stilling basin will be required near future. If the dropstrucure is washed out, the Bypass bridge will be washed out.
Structure: Koto Tuo weir
Condition: The weir are newly rehabilitated by the Padang City. However, the riverbed degradation at the downstream side is progressing rapidly. Special attention to this structure is required.